Gang, brand new here, but I thought I'd add a couple of holster makers who do superb work that I did not see on the list. Mike "Doc" Barranti does great work. He is a Shootist and a dedicated student of all things gun and holster related; website: https://barrantileather.com
Another first-class holster maker is Von Ringler: Von's work is stunningly beautiful. His "Wyoming Combination Holster" is very popular with outdoorsmen and women from Wyoming to Alaska. https://ringlercustomleather.com
I'll warn you, however, both of these gentlemen are backordered for custom work.
I need to find one on the list that will take on two 1911 projects that another gunsmith on the list started but appears to have no desire to finish. I know that is going to be a challenge because a lot of smiths don't want to work on something that someone else has messed with. I don't blame them since it's no different turning wrenches and getting someone elses half finished bullshit.
I know that Joe Chambers has fixed some less than optimal work done by other smiths - he's worth giving a call. He's very detail oriented and stubborn (in a good way) about getting things right. You may have a long wait ahead, though. I'm not sure what his backlog is like these days.