Are you saying you want to become a vendor here and accept MP as payment for your products/services? If that's what you're saying, that wouldn't work - unless you are a bitcoin vendor, you cannot accept other forms of payment. If you did, then those buyers wouldn't be able to use the escrow service and wouldn't be protected. And if you, the vendor, were to be scammed, SR support wouldn't be able to do anything to help you because they do not support out-of-escrow dealings.