Your proposal will not work if you fork Bitshares. Take a look at how many alt coins have over 1k USD of volume in a 24 hour period compared to how many alternative coins have less than that. It is likely this fork will fall into the "less than that" category. Thus, Bitshares as-is will have more liquid Smartcoins than your fork. Not to mention all the negatives that come along with forking a project/community.