Guide only needed for brown bear, goat, and sheep.
I hunt Ak DIY every year, sometimes spring and fall, black bear mostly but also caribou and sitka blacktail. I do it 100% ENTIRELY on my own. I've considered moose but it is too big for 1 person to handle. Certainly have seen some world class moose. I go by myself taking all my equipment from home. I study the maps, choose a spot, send a pic to one of the air taxis I use to see if it is landable (always is as I know their needs), and off I go. I actually do a presentation on how to arrange a trip like this.
These are some I recommend that specialize in any level of DIY support. Mike Strahan is the owner of Lost Creek. His main specialty would be moose on a float hunt but he is not limited to that. He is a well known Alaska author and presenter. He also owns the most popular Ak forum site.
Lost Creek site:
Larry Bartlett is the owner of Pristine Ventures providing exactly the same thing as Strahan (competitors), author and presenter, he is very competent and also has his own forum site. He makes a good game bag.
Either of the above guys will do you well.
Bay Air owned by Tom Schlagel is an excellent air taxi/outfitter out of Dillingham for moose. Him and Janet will do you VERY well for a moose air drop. Their mulchatna caribou hunt is now closed to non-residents.
Out of Anchorage I would recommend Rust's. He is mainly an air taxi with you providing the gear. But he will put you in a good spot.
If you go totally DIY with a couple guys, ship the heavy equipment up in advance. I just carry mine on the plane but I only have 80 pounds. Figure air taxi rates from $450-$750 per hour depending on plane, thats flight time out and back, out and back again, and potentially out and back again for moose meat hauling. Lower end of cost is for like a 182 with 750 pound load up to a beaver with about 1200 pound. Can run into a few thousand for the air taxi. Probably on average 1/2 hour for each leg.