Convert our eBay template to incorporate frame/jquery/javascript/ajax

We currently have a business which sells all of its products through eBay.co.uk. We currently have around 300 products and manually create html listings like the example below; Our eBay advert: [login to view URL] A competitors eBay advert [login to view URL] We are aware that eBay does not allow certain forms of iframe/jquery/javascript/ajax but it does allow others, as such we need someone who has previous experience in this area. *Please note we are not just wanting someone to create an eBay product template like in our example, we are looking for someone to use iframe/jquery/javascript/ajax so that we can easily edit and control our lisitngs from one central place away from eBay. Key Requirements - Our current template needs to be recreated or copied so that it works within iframe/jquery/javascript/ajax so that we can easily update prices across all our adverts. - we have 3 eBay stores which display all the same products and information except we change the address and telephone number within the advert. - the template must be allowed by eBay and not be at risk of removal. - we currently show customers our product range on an external page; [login to view URL] each product is hyperlinked to eBay, we would want this page to actually display within each and every template and potentially be on a scroller to reduce the length of the advert. - We currently load our products via an excel sheet which generates the html for the adverts, if you can create a similar system so it is easy to add new products from an excel sheet and to also easily edit content within the ebay listings. - work starts immediately