on Matto1kUte's 1980 1200 ute the lower control arms bolt on to the Stanza struts, no - probs. its the early 1200 you need to swap the lower control arms. I have reciently fitted 200B struts with girlock calipers, and i had a set of caster rods modified to make them adjustable. Im giving these a go with rodeo 4 piston calpiers as my next upgrade with the CA18T (bolt on upgrade on 200B struts). i have seen 120Y and sunny calipers smoke heaps (hot) on worked engines when given a bit of a hard time.
All depends on the car and engine. any discs are always better than drums.