How much will this typically cost to repair?
Colt charged me $55 plus $30 shipping to put one in my ‘73 Python, but that was 10 years ago and it took 2 months to get it back. I almost positive Colt no longer works on the DA guns. There are no doubt quite a few good gunsmiths out there that can do the work. Ford’s would probably be the gold standard but would likely take a LONG time and be quite a bit more expensive. I just don’t know who to recommend. I would suggest joining coltforum.com and asking there.