I did a Boyd's "semi-inlet" 98 Krag rifle stock a couple of years ago. There was no part of the stock that didn't require significant to major work in fitting, inside or out. From the buttplate tang to the forend tip, and everything in between. Everything. External shape, inletting, everything. Grasping grooves were more of a suggestion than a reality. It was a nice enough piece of walnut, but for the money and the work involved, better to start off with a blank. I'm in the process of adapting this stock to a 92/96 action now. As Dick Hosmer has pointed out, it's just a matter of enlarging the cut-out for the bolt handle seat and flaring the wood around it.
Don't really have any knowledge of these other companies, except for using a couple of the S&S replacement forends, one was great, the other just OK.
The fellows on this forum are pretty enthusiastic about Krags, and if they can steer you to a better solution to your stock problem, well...