Auction Style website (professionals only)

Hello I need an experienced and professional web developer team/company to code the backend of our auction style website (almost no similarities to eBay style auctions) and implement a frontend using the design template we have (Photoshop file). There are detailed schematics of the website, basic layout templates for all the web pages (about 13) and a two-page document explaining the way our auction engine works. This and any other detail not mentioned in this page will only be mentioned after an NDA has been signed. The backend includes: - client database; - items database; - statistical info (to feature in admin panel); - admin panel; - auction engine; - 4 stage bid process (bid, confirmation, payment, thank you); - password/login retrieval process; - members only areas; - If possible, create three instances of the website (copy/paste and relevant XML connectors) so the website can be in 3 different languages (we would translate it all). If this dramatically increases the cost of production, let me know why and do not include it in your quote. The frontend includes: - implement all text/images throughout the website with the help of the layouts I provide; - implement the design template and make sure it is consistently reflected throughout the site. The website should only require, XML, PHP, MySQL, Javascript(?), CSS and XHTML. However, feel free to suggest the use of a CMS system like Mambo or RedDot, which makes editing and maintenance much easier. Please bear in mind that I will only accept bids under $800, because this is a relatively simple/small website for which we are providing lots of layouts and guidance. Thanks