Well, there have been a few picture threads on here on how to properly blue print/true a Remington action by damn good rifle builders such as William Roscoe for one. Mine is a bit out dated, but it gives you an idea of what is done, which was one of the reasons I posted it.
As for a list of legit smiths, that's also been posted, only not made a sticky. The question comes up so many times that maybe there should be a sticky of the smiths that pay dues on this site. A vendors list would help them a bunch for business. I myself have posted lists of many of the guys on here that have an FFL and contribute to this site by paying their dues in money, contributions at SH events, and from time to time offer their profesional opinions when member ask for it.
Here's a couple of the best guys, but these are only two of a bunch of really good ones.
Mark Gordon at Short Action Customes
Chad Dixon at Long Rifles