Bitcoin escrow

Avg Bid (USD)
Project Budget (USD)
$250 - $750

Project Description:
I need a simple escrow service, similar to or and integrated with blockchain JSON Rpc api
( to send and receive bitcoin payments.

With the following features:

1) Users will have a bitcoin address generated upon sign up.
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.
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.
8) Must be secure

Additional Project Description:
12/13/2013 at 7:39 MSK
9) Must be mobile/tablet friendly. (The website can be responsive or two different designs, one design for PCs and one design for mobiles/tablets)

Skills required:
Bitcoin, HTML5, Mobile Phone, MySQL, PHP
About the employer:
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