Over the past two weeks I've gotten the frame almost all welded up, including adding the FU tubes, the rear shock support gussets, and the last of the diagonals. I still haven't figured out what to do about bending the round tubes in back, but it looks from all angles like I don't have to worry about that for some time. One thing I'm tempted to do is add a diagonal across the nose, but it looks like it might be tricky to get the torch in there. Maybe there's another way.
I built some jigs to position the suspension brackets, and I'm planning to tack them in place this weekend. The front jig aligns the brackets at a 5 degree angle, which is the only way to build caster into the trunion-type M.G. front suspension. I'm using rubber bushings on the front suspension, and mixed rubber/rod ends in back. Pressing rubber bushings has to be one of the most difficult jobs. I haven't yelled or cussed or thrown things across the garage that much in a long time.
I had to modify the rear bulkhead, cutting out the O3 tube and the back of the tunnel, because the MGB rear axle is just too darn big. I never liked the welds on that section of the frame anyway. I thought the axle fit okay in my mock-up frame, but looking back I didn't actually fit it into the frame, just sort of set the frame on top of it. Modifying the frame turned out to be a good experience in the end, if only to prove to myself that nothing is really permanent and anything can be fixed.