Online Art Gallery project with multiple artists and membership types

Online Art Gallery Wanted I need a script for an online art gallery for multiple artists installed. There are plenty of these running on the net so a talented coder (like you) should easily find some inspiration. Guidelines. There will need to be multiple top level categories like painting, sculpture, photography etc and multiple sub categories like painting/oils, painting/watercolor etc . All emails to the artists will be sent using an onsite form so the actual email address is not displayed (and admin can see how many have been sent to any given artist.) There will be three types of membership available: - Bronze (free), where members can upload up to six titled images, publish their name, art type for each image (medium), their geographic location, a limited amount of text (500 characters) about them, and an email form for contact. - Silver (paid by paypal), where members can upload up to thirty two titled images, publish their name, art type (medium), their geographic location, a limited amount of text (2000 characters) about them, and an email form for contact. - Gold (paid by paypal), where members can upload up to one hundred and eight titled images in up to four sub galleries, have the option of a paypal enabled shopping cart for their images, publish their name, art type (medium), their geographic location, a limited amount of text (4000 characters) about them, and an email form for contact. All members must have unlimited access to their mini site and be able to change their images or text freely. Uploaded images must be automatically resized as jpegs to a max of 450 pixels along their longest side for the main display image and a max of 100 pixels for the thumbnail. All URLs generated must be SEO friendly using mod_rewrite. The main page of each artist must be [login to view URL] The home page must show a random artist and one of their images as the "featured artist". This must change on page reload. There must be a "Latest Artists" feature on the home page with the most recently joined 5 artists and one image each. Visitors must be able to "Search for Art to buy" which will only show Gold members who have enabled their shopping carts. There must also be the usual sundry pages like about/contact/terms/links etc. There must be a keyword based "Quick Search" on the home page with a link to "Advanced Search" next to or below it. The advanced search must allow the following fields, Location, Medium (including subcategories), Show only art for sale, Keyword or phrase, Member since (date). This is the brief as I see it. If you wish to suggest alternatives or additions to any of the features I am willing to listen before the project is awarded. Check my feedback to see what my providers think of the way I do business.