This is the 81-87 wiring diagram Graham. Hope it is legible enough for your purposes, if not PM me your email and I will send original scan Incidentally circuits with only two fuses used to be fairly normal (certainly on BMC cars). Early Minis had two, 30A I think, one for the permanently live circuits and one for the ignition switched ones. Later Minis changed to four fuses and when I rebuilt mine I changed it to eight fuses of various ratings