Jimmy Spurs has a good reputation. I also like Pioneer Gun works http://www.pioneergunworks.com/ and this one, http://www.codyscowboyshop.com/

Have guns by both. My current CAS 1873 Carbine is a full house Pioneer project with wood that I fitted, finished and had checkered.

IMHO, getting a completed gun from one of these folks saves a lot of back and forth. It also saves money in the long run.

DF