Not having a fiat gateway is the biggest obstacle to BitShares' growth. I discovered BitShares 6 months ago, took me a while to appreciate its potential and also had to overcome the entry barriers such as the need to have already bought some crypto to transfer across to a newly created BitShares account.
Like you, I started to look for a regulatory compliant fiat gateway solution.
No matter how libertarian one is, the transition from old to new will need to be done within existing rules. Rules can and will change in future, but for now we have to develop solutions that are compliant.
I work in finance, know how challenging it is, will be happy to help you in your endeavour.
RE: Starting a BitShares Gateway