Clutches fail much less often than compressors.

If it were me, I'd look for a junkyard compressor.

Bear in mind that MB compressors are very similar to many late high volume vehicle compressors, which differ primarily in not having a speed sensor.

It's either a sanden or seiko, can't remember off the top of my head...

Jim

__________________
14 E250 BlueTEC black. 45k miles
95 E320 Cabriolet Emerald green 66k miles
94 E320 Cabriolet Emerald green 152k miles
85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles