penny auction site work, need php expert

Hello, I have installed penny auction script. In this project I want to add express auction. You create script and integrate with my script. Manage from admin panel. How it should work: Buy when the price is right for you • User cannot see buy now price till they pay / bid on it. • Each time User click "Show price" means the price down € 0.40 • Each click on "Show price" costs € 1.00 to 2.50 • When the price is right for User, can buy! The starting price is equal to the value of the object. The price decrease of € 0.40 each time you click "Show price", and you have the opportunity to purchase the item at the quoted price. A simple method of procurement that allows you to buy items at prices often much lower! You can buy credits immediately after registration. Example Auction page - [login to view URL]://www.thenextbid.com/enchere-express-aspirateur-robot-samsung-navibot-6517.htm&usg=ALkJrhiuL5Ff0W9aC1Lyefdx8LJ-5AtbMA my website URL: [login to view URL] and penny auction site need Facebook sign up/log in with bonus bid offer, like button with bonus reward. Thank you Thank you Amit