In Wyoming there are 3 ways you could go. One is the "LEFTOVER DRAWING" with ap dates of 7/10 - 7/20 and results available 8/7. These are licences left over from the earlier drawing. You would have to go to their web site to see what areas had licences available for a given area.
After that, if there are still licences that are undrawn, you can buy one "over-the-counter" at the Cheyenne main office. You still have to fill out an application form, but I think it's more to reserve the license for you cause it's not a drawing.
Thirdly, after Aug 15th you can buy "DOE/FAWN" licenses over-the-counter, but it has to be from a licensed store IN the hunt area you are wanting to go. Confused?
KEEP IN MIND . . . You cannot pay for them with a check. It has to be a cashier's check or Postal Money Order.
As far as eastern Wyo having tough access, not exactly so. There is a lot of Nat'l Forrest, BLM, State Trust land, and public lands that is accessable through the G&F's Public Access program. Go to: http://gf.state.wy.us/ and read all about this stuff. More ?????'s, feel free to send a PM.