To be legal follow the advice above, probably only one outfit that can help you without committing a felony. Pinpoint your spot and cross reference with the USFS (or blm) for permitees. My llamas go up there a lot not sure if that is coincidence of my location or if there are few outfitters.
just an fyi, I hunt that area and at one time looked for the same thing. there are a few but I spoke with 3 places and they wanted me to have it quartered, bagged and packed to main trail. personally, I don't want to pay someone to do the easiest part of the trip, getting off a mountain is the hard part once I hit the main trail I'm good. maybe I just called the wrong people, if you find someone who actually packs out elk let me know please.