is the air compressor clutch coil hard to replace and where can you buy one? on 2006 Kia Sorento

power to coil but it doesnt engage

Asked by for the 2006 Kia Sorento
The individual parts are available from the dealer, the compresor needs to be removed to replace the clutch coil.The A/C system will ned to be evacuated and recharged upon removal of the compressor. it loks to be about a 2-3 hour job.