I think I am going to build off of your plan here. I have a pancake Craftsman I can just leave in my garage, piggy back off of a hole between the garage and my how water heater closet and snake the hose to my basement where I paint. Then I just need to plug it in when I am ready and ill have zero noise where I do the work.

If this is the case, then all need to do is dump a few bucks into a decent airbrush and I am already better off than I was before.

What is the name of the piece between the hose and the brush? The 2nd regulator? Would it be something like this?
https://www.amazon.com/NANPU-AW2000-02-Miniature-Compressed-Regulator/dp/B07TPCGWPY/ref=sr\_1\_8?keywords=airbrush%2Bpressure%2Bregulator&qid=1668446934&sr=8-8&th=1