RE: 22/410
Only place I know that makes them as a domestic maker, would be Savage, and you're not going to get one for $200 no matter where you find one if you're buying new, and good luck getting someone to give theirs up, like you said, it's a SWEET setup.
Check out European American Arms maybe?? They do a lot of rifles/guns that most domestic makers don't anymore, like O/U rifles and such, I'm sure that they'd have something.
Screw the 10 ring, keep them in the zero!!!