Congrats on your tag, sorry you have to hear all the whining on here.
I have helped on an early elk hunt in Unit 40 and then on an antelope hunt, but never for bucks. I have both hunted and helped on other late hunts, and do know that in most of those it is difficult to scout as both weather and the migration changes things. The one thing I learned on late hunts is you need to find out where the does will congregate. That's where the big bucks will show. The farther from the road the better, but frankly I've never found rutting bucks to be too warry if the rut is really on.
I'm not sure holding out for a 180-200" buck is as realistic as it used to be, but certainly this is a great hunt if you have time and a lot of energy to spend looking.
I'm probably not telling you anything special, most likely Unit 42 will prepare you more for a unit 40 hunt, than any of the hunts I've helped/participated in.
Remember, like 42, that can be scarry country to get out of if it get's a lot of moisture.
Keep us updated. Some of us won't be resentful of your luck and success.