After looking for a 1911 that I could afford, late last year I was able to find a buy a SA Mil-Spec. 1911 at a very good price. Having now fired a little over 500 rds. through this pistol, I've about decided that I want to make a few changes. Specifically I'd like to add a nice tight barrel bushing, a drop-in grip safety and a extended thumb safety. I want parts that will work well. As the gun is parkerized, I would prefer parts that would match as nearly as possible that finish. I would appreciate suggestion as to where to look for these parts at the most affordable price possible. Sincerely. Brucev.