You have TONS of public land access for elk hunting in both 6A and 5BS.
6A > probably has highest concentration of elk in the state (tho not known for larger "trophy" bulls); use your noggin to get away from people. 5BS > good chance at nice bull if you work at it; no problem finding elk.
Biggest obstacle in 18B for antelope is ORO Ranch (100,000-acres), with other land closed to the public (checkerboard). Decent access other than that. You can do search on Unit 18B > Ariz G&F site.