As has been said.. the shaw barrels are tougher to clean, but tend to shoot pretty well. ive got 3 on the desk at the moment. 1 is moa, and the other 2 are just over half moa.
If youve got a vise, I might be willing to loan you the barrel blocks, and my wrench... if this is just going to be a straight conversion... and not a switch back and forth rifle.
I may have another cheaper option on a factory 260 bull barrel if you can wait a day or 2...