you will need an early manual yolk (ke1x and ke2x), as the uni joints in the later tailshafts are larger (ke3x ke5x and ke70)
tailshaft length is also different between auto and manual. the auto tailshafts are 1" or so longer.
sucks to say, but you will need a manual tailshaft from a ke1x or ke2x. it doesn't matter if it's from a car with a banjo diff or BW diff, as you can just swap the rear flanges if necessary.
dF