Artwork gallery clone-eCommerce site

I need eCommerce website. Something simular to the? <[login to view URL]>, but simpler. I don't need: -Artist accounts -Registered gallery accounts Should be: - based on Joomla 1.5 - based on MySQL - have administration tools to add/edit/remove artwork/artist/style/theme/media -do not display style/theme/media if there is no elements in this category -integrated with PayPal shopping cart. -each page should have permanent address (for indexing by external SE). For extra clarifications I am available.? Coders with experience in developping such galleries are preferred. Execution time? requested? 15 days.