I have not tried these guys yet, but they have been on TFL and THR for a while, and I have never seen a word spoken against them. Some of those pics look great.
One of these days I'm going to give them a try. Have a look and see what you think.
If that does not work out, and you live between DFW and Austin, there is a guy who used to do a variety of refinishings--he is primarily a 1911 guy, and I don't know if he is into one-off slides, but if you want to talk to him, pm me.