I might have mentioned a 22 way back in the thread, can't remember.
Volquartsen Precision makes some really accurate and expensive, I might add, 22 and 17 HMR/Mach2 rifles and accurizing kits.
I use their modifications in a 22 rimfire pistol I shoot in indoor 50 foot match, the can really make a gun shopo Ruger a tack driver and actually have a decent trigger. Mine pulls a 2 pounds, no creep and no pre-travel, just like it's supposed to....
Rugers, in general, have the most awful triggers and they all need some massaging IMO.
I get a kick out of the pop-up ad I get on this site about the Ruger 22/45 Lite that weighs just 22.8 ounces. What they don't say is the gun weighs 22.8 ounces and the trigger pulls at 22.8 ounces.......
Kidd makes some dandy stuff too.
I have the big bore stuff but it sure is nice to go out back and do some informal plinking and not go broke. For 10 bucks you can shoot all day.
Whatever you build, be sure to add the Volks titanium sure strike firing pin and exact edge extractor. That way you can actually shoot the really cheap stuff with no issues.
You'll have fun with it, I'm sure.