build a penny auction site, but bitcoin related

I would like to make a penny auction site, but where people can bid and buy with bitcoin and satoshi's (the smallest fraction of bitcoin that exists) example websites i would like to refer to is : [login to view URL] I would at first be offering some basic stuff : bidding packages at a price in satoshi, and 0.25 bitcoin, 0.5 bitcoin, 1 bitcoin, 2 bitcoin, 5 bitcoin etc Bidding would start at 1 satoshi, but placing a bid costs 5000 satoshi. after some time, some digital goods might be put on auction, or even some physical items. i need the following functionality : - items i can put for sale, with a counter counting down - referral system, where referrers get x amount of free bids (only to be used on the site) - account creation system, so users have to create username and password to use any functionality of the website. - besides the auction part, there should be a faucet, where users can come to claim 5000 satoshi daily (or 1 free bid) - people should be able to deposit bitcoin, which is then credited to their account. - withdrawal system that can be approved/denied in the backend. - some ad placement should also be put in - dice functionality, where people can do some gambling while they wait for the auction to finish. further details will be discussed with winner of project.