I'm guessing you are hesitant to ship.

Did you check with Ahlman's Custom Gun in Morristown, MN? Pat Laib, in Spicer, MN? You might want to call Puglesey, in Duluth (Gary New Duluth, MN actually) to see who they are using.
Staying in MN might be a mistake, I know more gunsmiths here I WOULDN'T have work on it, than those I would. Plenty of 870/1100 mechanics here, but, few good gunsmiths.

Good Luck.

Best,
Ted