OK if you run into serious parts problems, book yourself a trip to New Zealand, as thats where the bulk of A31/C33's have ended up. parts are plentiful and cheap and much gets binned just got back with a leather interior, all interior switches and window master, all window moulds, bumper and cornerlamps and a set of coils for $100
before that I was getting ripped from a parts importers in brisbane, $125 for a master window switch!
I will add that I managed to hybrid a drivers window regulator together using the window motor and rope from a J31 Maxima