Interesting project which I wish you the best of success with..
I'm a little confused though, as to why you intend to build one of the best cryptocurrency exchanges, with options to trade commodities, yet you choose to use ERC-20 to launch your own currency of choice.
As you may be aware, several exchanges have suspended ERC-20's because of vulnerabilities and I'd like some clarification on how you would manage the growing technical and security vulnerabilities associated with ERC-20.
How would these affect your ability to guarantee the highly secure secure environment required of an exchange ??