As far as A/C, after checkin fuses (and if the corrado kept the twin A/C relay setup on the radiator shroud as the A2's), might need a new blower motor. Get the blower workin first before attackin any other A/C components, as it's the cheapest If it is the same as the A2's, that might also be the culprit behind your intermittent cooling fan anomoly, as those relays (if memory serves) kicks the fan on whenever the A/C is on.