RE: Caribou Hunting?
There is no reason to not self-guide caribou in Alaska if you can rough it. If you cannot tent-camp, you are best suited for somewhere else (Canada) because Alaska caribou hunting is not typically done in restort-type places.
You can do a do-it-youself hunt drop camp for about $2,000 per person. IF it were me, I would access the Mulchatna herd from Bethel via Ptarmigan air. You could also try Aniak or a few other places.
There are other herds as well than can be hunted, but they are more expensive to reach, but the hunting is probably less crowded.