This is a direct replacement for the 10/22 trigger. I have the upgraded trigger housing, but this should fit the standard one from pictures I've seen, can't confirm though.

The holes are tight, so you have to drill them out with a 1/8" and 3/32" bit. Your circles are probably good, but a drill bit is better. Since the fit needs to be so tight to avoid slop, don't try to prove me wrong.

Print in the orientation in the picture, support the underside of the top gap and the underside of the trigger end. I printed with 100% infill and 5 walls just to make sure there was enough material for the drill to bite into. Printed in PLA, should be fine, but ABS or Nylon is the best bet, up to you.

STEP file is included if you want to change the profile or fine tune it for your needs, albeit you can just file down the print.

Happy shootin'!