According to Michael (aka PornLaw), there aren't many places outside of CA where you can legally shoot porn. As you noted, it is considered prostitution.

To publish the clip you'd need well-crafted model releases from all participants and you'd need to properly document their ages to satisfy the "2257" regulations. You'd also need to set up a custodian of records for said regulations. Current AIM-like certified STD testing for all partipants would be a great idea.

And, you need to realize that you may be subject to local/state/federal prosecutions for violating nebulous "community standards" that may cost you everything you have or will ever have - not to mention jail time.