I'm still working on my SMR. I'm trying to take it easy and avoid any major blunders. The lock bolt worked out fairly easily. I had to open up the hole in the stock a tiny bit but after that all was well. Also, at first I tightened the bolt a little too much which caused the end of the bolt to protrude too far on the lock side. Easily remedied. I'm still a little frustrated in trying to get the lock/pan completely flush with the barrel. My inletting/chisel skills are non-existent but I'll get there eventually. This is a great kit and I'm very happy.
Replacing rifle lock bolt
The new one and the new washer are both stronger in looks and feel, If the bolt was just a couple turns longer it would flush up with side of the lock to look more finished. One could, of course, inlet the washer into the stock to pick up those few extra turns. I did not want to chance carving any wood.