Not an expert by any means. I went once in 07 when i was 44. Booked it 2 years out and went with a decent outfitter in the Alaska Range. The hunts back then were super cheap compared to now.
I got the hunt for 8k. Now you are easily looking at 20k plus for a reputable outfitter. The good outfitters are usually booked up 2 years in advance. Alaska is getting hammered by high numbers of sheep hunters, but its also big country. A great place to go and talk one on one with the outfitters is the sheep show in Reno. It will only virtual this year, but its a great spot to to scope out your options.
Not many outfitters in Alaska use horses.
Pretty much all of them fly in the client to a high river drainage. From there you backpack in to a high camp
I chose the early hunt which ate up 3 days of the hunt before season, but the rams aren't spooked, and you get first crack at them.
Get in the best shape of your life.
PM me if you want to talk some night.
Good luck,
Bryan