Well, with a little help from Master Jack, I'll have brakes for the new diff shortly (narrow, LSD, standard XY brakes). I drew a complete blank finding a full brake spring kit locally.
Then, I install the diff and put on the rear's 12-slots. New dual master cylinder, bleed the brakes and swap in my manual gearbox / pedal hanger. Got to work out my clutch actuation method still.
Find a tailshaft or get one cobbled up and balanced.
After that, motor gets started for the first time in years. Might have to shoot some video of that!
Once it's running again, I'll probably hook into the front suspension.