In addition to that, though, I've been getting ready to weld up the dropped transmission mount. This is from the rear of the frame, looking forward. The chunk of frame that I cut out is bolted to the transmission; you can see the three inch drop, which should go a very long way toward solving the oiling problem.
Now, with the engine and transmission pulled out again, here is a look at the right-rear drop tab, clamped up to the frame.
I am going to work on fitting up the subframe between the tabs - it needs a little strategic grinding to fit. Then, with the frame bolted to the transmission, and the engine in the car, I will tack the tabs to the subframe. After that, I will unbolt the subframe and fully weld that up on the bench.
The hard part then will be welding the whole thing up to the frame.