The best stock question is subjective. There are several very good ones: McMillan, Manners, H-S Precision, Rimrock to name a few. As for the stock barrel, I'm not a fan of most factory barrels regardless of brand. I highly recommend you put a handlapped custom on it from the maker of your choosing. You will never settle the argument over which is better, cut or button rifled. My top choices are Obermeyer, Krieger, Hart, Bartlein, Broughton, and Lilja. If I had to pick only one it would most likely be Obermeyer because the fact is, Boots just does not make a bad barrel IMO.
As to gunsmithing, well, ultimately it boils down to word of mouth and trusting those who build record benchguns who state that they build their hunting rifles the same way. There are barrel makers who will also rebarrel your action for you and finish the rifle complete, such as Hart and Bartlien (at least I think Bartlien does).
Bedding is gunsmith preference. Most like to use Marine Tex gray. I like it and Pro Bed 2000. Other products work but these 2 are my preference.