Thinking of getting a FFL 7 firearm manufacturer license

[FuelMaker]

I like to build things, along with stills I also like building rifles - AK-47s to be exact. I've built a couple now and really enjoy it - the tooling required for a AK build is pretty extensive but once you have them you can pump out top-quality rifles in just a few hours. Unlike ARs (which are just assembled) AKs have to be built; metal folded, barrel pressed, pins pressed, rivets flattened, etc.

I'm thinking if I get my FFL 7 manufacturers license, stay under 50 rifles a year, and use premade receivers I can sidestep the excise tax and ITAR requirements and stay legal while making a few extra dollars doing something I really enjoy. My primary marketplace would be gun shows. I dont really want to deal with any NFA items (machine guns, silencers, etc) so I wouldnt need a SOT2 license.

Having a FFL 7 would also let me purchase parts and other guns at wholesale or near-wholesale prices and not have to deal with the ridiculous amounts of paperwork to buy a firearm. I dont know why the lawmakers dont realize that all the gun control paperwork does is make it tougher for your average law-abiding guy to buy a gun when a criminal just ignores it completely. In fact I know several otherwise law-abiding guys who have started buying guns to support their gun hobby "under the table" just because it's easier and its actually cheaper than having to deal with all that crap.

HOWEVER, the no-notice inspection requirements of a FFL 7 dont mesh well with having a nominally illegal still laying around in the shop. On the other hand I dont know if a ATF agent even gives a rats keister about stills. Are there any stillers out there that are also FFL 7's?