Mybb Forum market-place needs developering

I need A market-place developering for MYBB soft needs to have? Buy Now and Bidding system 2 options Tracking for people to Track orders if sending and if selling Files or Media we Hold them and that for selling Example if someone selling a website we hold the login and password and hosting info and files on server. like that to place add there a fee Bit like How Freelancer Market place works.