ALL the 020 style rod change gearboxes mk1 mk2 mk3 synco or 2wd use the same style clutch. pressure plate bolts to the engine then the flywheel goes over it ( opposite to normal way )
020 clutches come in 190mm ( possobly 200mm ) and 210mm 16v and mk3 gearboxes have larger main shaft so you can’t use those clutches. you want the 210mm mk2 8valve clutch. they is all the same