1986 328 AC condenser fan

I recently purchased a 1986 328 GTS and know the AC does not work so trying to figure it out now. The compressor seems to be working and I can see the freon (changed to r134a) bubbling. However the AC condenser/radiator fan (the one underneath right headlight) does not turn on. I tried swapping relays (with the horn relay). I heard there is a switch for the fan underneath the right front and will try it once I jacked up the car. Any suggestion on where to find OEM/equivalent AC condenser fan for this car (besides the ferrari dealer which is one of my option)?