Bitcoin Escrow Payment Integration for Auction Site based on PHPProBid 6.11

Hello guys, i've made an auction website (like ebay) based on PHPProBid 6.11 and i need to let it support Bitcoin Payments with Escrow system, when me and other admin are the Escrow and take a little fee on the transactions. The most needed feature are the following: 1) Users will have a bitcoin address generated upon sign up or can add one or more alredy existing. 2) This address and transaction history will be displayed in the user profile. 3) I would like the customer to have the ease of just transferring bitcoins to their address to deposit money and I would also like the sellers to be able to transfer the bitcoins out after a transaction has been completed. 5) I would like to collect commission on vendor listings when a transaction is completed, so in a payment the bitcoins make that way: BUYER -> ESCROW(me) -> VENDOR a) I would like the commission to be variable depending on price of listing b) I would also like the commission percentage go up if the customer/vendor has to go through resolution. 6) I would like to give the option for customers to place a transaction into resolution if they don't receive their product. 7) I would like to set a 45 day auto finalize on the escrow payment if the customer doesn't log back in to finalize the order after receiving their product. Thanks all guys! Bye!