Individual A/T axle shafts are different lengths and different again to M/T shafts.
AFAIK CVs are the same.
Sure you`ll find a shop willing to do the work if you`re willing to pay their hourly rate. Just a boy`s job and an easy DIY task, even for a novice.
Try flipping EACH shaft end for end. No need to dismantle to clean, after pulling back the boots, clean out old grease with rags, wash clean in gas & blow out with air before repacking with new grease of appropriate grade. Procedure should be detailed in the manual or Clark`s Garage.