When I first heard about the Binance-DEX I was pretty surprised since all of their costumers are used to the central version of Binance. Anyhow, I found it interesting when looking at your goals I have to think about Bitshares. Isn't Bitshares the right platform to build your DEX? You will gain superfast Blockchain-Technology, very decentralized, Stablecoins like BitUSD, BitCNY, Smartcoins, Account Names, Digital Identity everything that you have mentioned already exist there. Binance+Bitshares that would be your super team!!!
Thanks for sharing your thoughts!