Gus Norcross, in Wiscasset.
http://angusarms.com/He built two "wicked accurate" 1911 pistols for me: one in a hardball configuration, and another in a wadgunconfiguration with red dot sight. Both were based on Springfield 1911a1 MILSPEC .45 ACP pistols ( NM prefix s/n).
He also put a Criterion barrel on my M1 Garand, (with trigger job, and non-epoxy bedding job on the stock ). All for making an accurate and legal Garand match rifle.
The quality of his work was outstanding, but he is selective on the firearms he works on.
configuration
Heard good things about Jud Bailey, but no direct experience with him.
Dietrich Gunsmithy.hadcsome ad time on a local radio station ( that carried Rush Limbaugh). No personal experience. East of Bangor.
http://www.dietrichgunsmithy.com/services/services_policy.htmlBucksport Gunsmiths ( no personal experience). South of Bangor.
https://bucksportgunsmiths.com/