I put Novaks, Ed Brown grip safety, videki trigger, McCormick sear, EB tactical ambi safety. on my $407 1991A1. I also polished the feed ramp and throated the barrel. I put it together right before Kimbers and such became available.
Out of the box with hardball it'd shoot one ragged hole from a Ransom Rest at 25yds, so I didn't do anything to the barrel or bushing.
Buy the Colt.