You can look for the SAFT framework.  My organization is going to assemble best-practices documents for the different type of offerings (Howey, Reg A+, etc.) but that's not been done yet.

In any event make sure you consult legal counsel.  The repository we build is not intended to replace legal advice; rather, to provide a starting point to bring more lawyers into the know in the crypto realm.

Good luck with your ICO, and strongly consider seeking the advice of an attorney with experience in this specialized area of law.

Best regards,
Ben