It was a bit fussy, marking out where the receiver needed carving, then modifying that hollow location a little as the stock closed further and the trigger guard and action lock lever moved up a bit. There was a bolt or pin (can't remember now) to watch out for, but I just missed touching that. Think it was a split pin retaining the barrel. The ebony forend I made is stuck on now with JB Weld so there's no getting it apart to look. I stopped carving when it was closed enough and I was starting to worry about making the metal too thin. Of course with .22lr, and especially since I only shoot subsonic CCI SV or Quiets through mine, it's not like weakening it was much of a worry, but there was no real need to get it folded tighter than this:
The scope has QD knobs if I want to take it off for transport but it doesn't hang off the back too far when folded, so I just leave it in place. This is what the forend looks like, openings in the ebony for the guard and release lever to get to the metal, then shallow carved pockets for both of those. Oh, and I cut off the lever a bit, keeping it long enough to use easily but allowing the thing to close more. The outline measures about 17" x 6" without the scope, 19" x 6" with it mounted.