I have a power steering delete setup from 'eyeball', which would enable a TIII in an L-body, with a manual rack (or a power rack with the lines looped in a pinch). So far I haven't found a way to make this work (functional p/s), but I would love to do a TIII L-body setup with a TI/TII belt setup to make a bolt-on TIII in an L-body. I think I can make it work eventually without A/C of course.
I keep trying to convince my older brother to let me put that TIII in my (actually his) Omni GLH, but so far he is more than happy with TI power. What the hell??! I even offered to buy the car back from him and apparently he's still having too much fun with it. Good for him.