Develop a classified and banner ad site --- last phase

Looking for a long-term relationship developer to develop a classified and banner ad site. Bidder needs to have very strong JavaScript/AJAX experience and also is able to view codes developed by other coders. Attached is some codes in the current site. Do Not BID if you are not able to easily understand the codes. Thanks. I will give the winner these developed codes and database and a new test site for development and testing. Almost 90% of the site already was completed, The left parts that you need to do are: fix bugs, tune the design, SEO, member point management, images management, and a small game. The site will go public first and then continue develop the rest. Note: Almost all documents are ready. You could start now. The site will be installed in Linux based system. well test your codes before delivery. High quality are required. DO NOT BID if you cannot meet this requirement! HAVE TO have well documentation in your codes. HAVE TO develop your scripts in my designated site. I will test it from the site. HAVE TO (strongly require) reduce web server load as could as possible by using JavaScript and AJAX in web browser side. Payment method: (DO NOT BID if you cannot accept this) --- No money paid in advance, --- Will pay 30% of total after completing part 1: the site goes public. --- Will pay the rest 70% of total after completing part2: done the development. --- please also list the price for first 6 month maintenance (fix bugs and tune) Good Luck Jesson