FYI, if you're looking around local yards you'll need to find AE102 rear brakes, doesn't matter if it's Seca or sedan. Easy way to tell is that all the 1.8L models (Conquest, RV, Ultima, CSX 1.8 etc) had disc rears and 14" wheels, whereas the 1.6L (CSi, CSX 1.6) models had drum rears and 13" wheels. The imported AE101 Levins/Sprinters will mostly likely all have rear discs though.
On the AE102 rear disc setups, the handbrake cable acts on the caliper/piston directly, there is no small internal drum brake inside the rotor like a lot of other setups