Free: Contests & Raffles.
Buy a WY preference point next summer and look for 0-1 point units in the eastern part of the state with some public land. Units 7,23 &27 can be had with 0-1 point and have opportunity with some research and effort I believe. Go to WY f&g site and use the hunt planner and the harvest/draw odds features. Good luck.
They don't stick around long if they spot you!