Sweet! thanks for the replies -
Gotta figure out these things:
will my 2wd ZF trans work with a TC?
Which TC works with a ZF gearbox
rear driveshaft length and mods to make my 2wd one work (maybe a shorter front shaft?)
find a front DS.
I've seen a few threads on doing the F350 D60 leaf front end on a 250, however, it is a BIG tear-up / job for someone like me.