A little progress in fitting the lumps, and bites. Finally got my adjustable reamer and opened the hole to just fit the pin. It would have been much easier to have reamed the hole to begin with.....had I had the foresight to have the reamer on hand! I have cut and filed the 'bites', using my jeweler's saw, thinking everything was fitting fine. One pic shows the lumps fitted to the action. I had to flat file a good bit from the bottom of the block to allow it to slide onto the 'T'. There must be some clearance....as mentioned....between the barrel flats, and the watertable, or action flats.
Note in the pic that when locked, the lever is slightly to the right. That's supposed to be the correct position. I've read as the action wears, the lever moves to center.

Everything was going well until I put the locking bolt cam and lever in place. The bolt can only move as far rearward as the cam will allow. The pic shows where the rear of the front lump is catching, not allowing the lumps to seat. I must smoke and file a bit more of a radius.....but, it looked right!