I will echo the others, do not get the lock inlet on the Pecatonica, it is far more work to correct the location than to put the lock in the right place to start with. I would 100% advise NOT getting the trigger/s inlet either, it is again far more work to correct than to do it correctly in the first place. After one stock I will not ever get another precarve with the lock or triggers inlet, and I probably won't let them inlet the tang either if I went with a precarve.
I will disagree slightly with some others, I don't think the Pecatonica 'kit' is much if any cheaper than Kibler, and it certainly isn't cheaper if you get an L&R lock and whatever castings vs a Kibler lock and castings. Having a lock that needs hours of work or a lock you install and go, what's that worth to you? When you add the tools you will need to do all the tasks needed you will be WAY deeper into the Pecatonica "kit" than the Kibler by the time you make smoke also, in my opinion.
That all said, Kibler either doesn't make the rifle I want or the bore size I want in the rifle they do make that I want, so I haven't bought one. I also wanted to know how to build my own rifle, start to finish, so that factored in too. Buying all the tools etc was just part of the deal for me.