with compressor failures like internal type . the system needs to be cleaned out by an ac repair shop.If you do not do this the new compressor will fail quickly and it is usually noted that the compressor purchased will not be on warrantee.
if its just the clutch bearing failure and other external issues then you can just replace the compressor. using pag 150 oil. drain out the oil from the old compressor measure the amount then drain out the new compressors oil and add new pag 150 oil with the amount being 2oz more than you drained out the old compressor. put it all together an give it a long vac pump .. have it hold a good vac for a couple of hours so that the oil will boil off any mositure.
to be safe on a vehicle this old replace the low pressure switch.