Create an Interactive eBay Shopping Cart Configurator

I wish to create an online service where an eBay seller can setup multi-part configurations for a particular product (like a configurable Computer) and then allow eBay users to modify a listing on the fly that would actually either change the listing price....or create a completely new listing based on the users choices....and then allow the user to be redirected to the new listing! Using our own server to track changes to the configuration, we could control the experience of the eBay end user. We would have nice Admin sections....and also nice reporting to show the eBay seller how various bits of data about all of the sales of the "modified" listings! There are several great eBay configurators already available... I just want to create the best one and hopefully sell it to enough sellers that it will eventually become very affordable! After the initial release...we will most likely continue working on this project with new features for a VERY long time...and I will continue to use the same developer as long as the work is quality work! Here is an example from Magic Micro Computers: On this homepage of this company they have a product configurator: (we will do this also in a separate project!) Here is the URL... [login to view URL] and here is an eBay listing which incorporates a configurator: [login to view URL] As you can hopefully see from my description, I will be very thorough in my designs and guide you step by step so we can keep in close communications! I will do all of the design work myself...and give you wire-frames etc of EXACTLY those modules you will need to code! Thanks for bidding! Please DO NOT bid if this seems to be beyond your capabilities! I do not have the time at the moment to help someone learn how to work with the eBay API etc... so please have some experience. Thanks!