120y is probably the easiest car ive ever seen to convert to hydro clutch, studs are there to suit a 180b clutch master, hole is already in the pedal to suit all you have to do is get a hole saw and cut a hole

180b tailshaft is to short, if you get a stanza sss gearbox or an r30 stumpy then you would most likely be able to use an auto tailshaft to suit the 120y BW

but tailshaft isnt really a hard thing to work out once the engines in