Custom PHP auction script

Project Description: We are looking for auction site however NOT for websites/domain but for something else. You need to have android knowledge of some extent. Project needs: Front end: Where people could browse auctions (like [login to view URL]) and place bids BackEnd: User: where user could create account and auction (more details on auction in PM) Admin: Where i could control all aspect of site like editing auction, banning user, creating user account, resetting password Email: Every action like account creation, bid on auction etc should sent an email to buyer/sellers ALL GRAPHICS work is included in project. Actually almost everything like flippa,just not for website/domain. Project bidder may need to sign NDA. Payment terms: 1) 10% ESCROW on selection 2) 10% ESCROW on display of first working script 3) 20% Escrow on showing 100% bug free script 4) 60% Escrow and RELEASE on delivery of all files, source code and signature on NDA. I may increase some addons when ever where ever needed, so be flexible. FINAL WORDS: Please work professionally and do not 'appreciate' your own work. For some reason i don't like developers who appreciate there own stuff, let me be the judge of it and make sure to send me the sample.