Interested to know how you would manage one order book (will it be on-chain)? If it is one and managed on-chain then you would charge fee also for Cancel or orders? About the cost you can’t escape each exchange fee plus your commission, right? How is that cheaper then? Then if you are going to store data on-chain how do you tackle the latency issue(~10 second block time)? Have you designed leverage trading?
Love the idea! Just want to know how you would tackle the above :) Good luck guys!