Magento 1.9 Product View – Display In-Stock Seller/Vendor on Top

we have marketplace multi vendor/seller site.

we are displaying multiple sellers on product view page.

initially one Product is uploaded by seller "kidsdial4" , than same product is assigned by another seller "kidsdial6".

than in product view page, we are displaying both seller names like this

on top you can see seller kidsdial4:

on bottom you can see seller kidsdial 6:

here seller kidsdial4 have "zero" stock [out-of-stock ] for that product.

& kidsdial6 seller have quantity for that product.

so i want to display kidsdial 6 seller on top , kidsdial 4 should display on bottom.

sellerlist.phtml

<?php $productid=Mage::registry('current_product')->getId(); ?>
<?php if(count($this->sellerNewProductList())!=0 || count($this->sellerUsedProductList())!=0): ?>
    <div class="wk_mp_design" id="seller-list" style="clear:both">
        <div class="block block-account">
            <div class="head block-title">
                <strong>
                    <span class="wk_new_tab list_active_tab" for="seller-list-new"><?php echo $this->__('Sold By')." ".count($this->sellerNewProductList())."" ." Sellers "; ?></span>
                    <!-- <span class="wk_tab_seperator"></span>
                    <span class="wk_used_tab" for="seller-list-used"><?php echo $this->__('Used')." (".count($this->sellerUsedProductList()).")";?></span> -->
                </strong>
            </div>
            <div class="seller-list" id="seller-list-new">
                <?php if(count($this->sellerNewProductList())==0): ?>
                    <div class="fieldset wk_mp_fieldset">
                        <div class="wk_emptymsg">
                            <?php echo $this->__('No New Product Available') ?>
                        </div>
                    </div>
                <?php else: ?>
                    <div class="title">
                        <span class="lable profile"><?php echo $this->__('Sellers');?></span>
                        <span class="lable comment"><?php echo $this->__('Delivered By');?></span>
                        <span class="lable price"><?php echo $this->__('Price');?></span>
                        <span class="lable addto"><?php echo $this->__('');?></span>
                    </div>
                    <?php foreach($this->sellerNewProductList() as $seller): ?>
                        <?php
                            $userlist=Mage::getModel('marketplace/userprofile')->getCollection();
                            $userlist->addFieldToFilter('mageuserid',array('eq'=>$seller->getSellerId()));
                            foreach($userlist as $user){
                                $profileurl=$user->getProfileurl();
                                $logo=$user->getLogopic();
                            }
                        ?>

complete code of sellerlist.phtml` => http://pasted.co/13849662

wk_block.phtml

<?php
    $helper=Mage::helper('marketplace');
    $_product=Mage::registry('current_product');
    $productowner=Mage::getModel('marketplace/product')->isCustomerProduct($_product['entity_id']);
    if($productowner['userid']!=""){
        $captchenable = $percent = Mage::getStoreConfig('marketplace/marketplace_options/captcha');
        $rowsocial=Mage::getModel('marketplace/userprofile')->getPartnerProfileById($productowner['userid']);
?>

<div class="block wk-block block-viewed">
    <div class="block-title"><strong><span>
    <?php   if($rowsocial['shoptitle']!='')
            echo $rowsocial['shoptitle'];
        else
            echo  $rowsocial['profileurl']; ?>
    </span></strong></div>
    <div class="block-content">
        <div class="wk_blockdetail">   
            <ul class="partnerlinks">
                <li>
                    <a href="<?php echo  Mage::getUrl('marketplace/seller/collection').$rowsocial['profileurl'] ?>" title="<?php echo $helper->__('Visit Complete Collection') ?>" id="siteconnect"><?php echo $helper->__('View Collection') ?></a>
                </li>
                <li class="profile-view">
                    <a href="<?php echo  Mage::getUrl()."marketplace/seller/profile/".$rowsocial['profileurl'] ?>" title="<?php echo $helper->__('Visit Profile') ?>" id="profileconnect"><?php echo $helper->__('View Profile') ?></a>
                    <div class="wk-block-hover-div">
                        <div class="arrow"></div>
                        <?php echo $rowsocial['compdesi']; ?>
                    </div>
                </li>

                <?php echo $this->getChildHtml();?>

            </ul>
        </div>
    </div> 
</div>

full code of wk_block.phtml : http://pasted.co/0a221176

Sellerlist.php

app/code/local/Exam/Mpassignproduct/Block/Sellerlist.php

<?php

class Exam_Mpassignproduct_Block_Sellerlist extends Mage_Core_Block_Template
{
    public function _prepareLayout() {
        return parent::_prepareLayout();
    }

    public function sellerNewProductList() {
        $productid=Mage::registry('current_product')->getId();
        $collection=Mage::getModel('mpassignproduct/mpassignproduct')->getCollection()
                        ->addFieldToFilter('product_id',array('eq'=>$productid))
                        ->addFieldToFilter('qty',array('gt'=>0))
                        ->addFieldToFilter('flag',array('eq'=>'1'))
                        ->addFieldToFilter('product_condition', array('eq'=>'new'));
        $collection->setOrder("price",ASC);
        return $collection;
    }

    public function sellerUsedProductList() {
        $productid=Mage::registry('current_product')->getId();
        $collection = Mage::getModel('mpassignproduct/mpassignproduct')->getCollection()
                        ->addFieldToFilter('product_id',array('eq'=>$productid))
                        ->addFieldToFilter('qty',array('gt'=>0))
                        ->addFieldToFilter('product_condition',array('eq'=>'used'))
                        ->addFieldToFilter('flag',array('eq'=>'1'));
        $collection->setOrder("price",ASC);
        return $collection;
    }
}

i will give extra 100 bounty points if i get answer….