Multi-coin Cryptocurrency Escrow

I need a plugin for my site that gives me the ability to escrow funds on my site. When my visitors come to my site I want them to be able to deposit funds into a wallet-type of their choice( bitcoin, LTC, etc...) and be able to make transactions with each other through my escrow system. Everything needs to be automatic. I need an escrow plugin for wp 4.1 developed. It is a multi-cryptocurrency website. So it will have multiple coins, as many as needed. The escrow process will begin with them first selecting the coin they are going to use for the escrow transaction. Visitor hits the send button for the purchase, their funds go to escrow; visitor receives agreed on item and hits release funds to seller. Auto release after 14 days. Admin choices in case of dispute. I am looking for something similar to known market sites across the web, including tor. Mine is not a tor site and will not be used for anything illegal...I just like the marketplace escrow set up. Everything will be automated except when a transaction is being disputed and a decision must be made by the site staff. Contact for further details.