I have hunted Unit 32 and most of the 70's units from the Alcova Reservoir or Grey Reef Reservoir campgrounds. Price for camping is $7 per night per "unit". A unit is a tent or trailer. If you have three tents that is $21 per night which is expensive.
Wind blows very hard and you will need tarps to wrap around the structure so you can cook. Drinking water can be had at the trailer park campground at $0.10 a gallon.
There are some free BLM campsites along the North Platte River but you will have to figure out how to wind proof your camp.
Fishing license in Wy are expensive so check the price out before hand. Game wardens are plentiful and everywhere. Stay legal at all times.
Expect the weather to do what ever you are not prepared for. Blazing hot freezing cold, rain, sleet, snow. If you have tire chains throw them in the truck with a shovel and that will be a good luck charm to ward off thunderstorms when you are out on the gumbo two track far from pavement.
Some pictures of my camps at Alcova