Sadly it can't work without FTC approval, unless that is some method can be found to exclude all US investors.  That's the problem with combining a business/crypto/shares etc. into one.  It is no longer just a cryptocurrency and the regulators get involved.  Unfortunately the people behind this don't seem to understand that.  So whilst this is a good idea it is likely to collapse at some point.  I'm sure people will come on and now say that it is FUD but that doesn't change the facts.

I would therefore be best to get a US lawyer who deals in such things to just look over the proposals first.  If they OK it then no problems and a good idea.