Suspension need not be changed except to your preference. Nor the rear end.
Go to any EB parts house website......they list out what's needed (some 20-25 items)
Incl. everything fr. radiator, eng., eng. mounts, clutch, trans, adaptor, starter, flywheel, etc., etc.
They list all the peripheral "piecie parts" needed as well.
Your T-case is usable.