I will add this as well. I just received a copy of the Wyoming Outdoors, which is the official publication of the WY Outfitters & Guides Assn. It's very helpful with guide info, lodging & meat processor info by game regions. If you get ahold of WY Game & Fish, perhaps they could mail you a copy.
Additionally, if you find a region or unit you want to hunt but the draw odds are, lets say only 30%, look at the Special Draw odds for the same unit. The Special Draw is a separate draw than the general lottery pool. The tags cost more than the general lottery pool, however, you have a better chance of drawing a tag (sometimes 100% draw odds) because less people are willing to spend the extra money to enter that lottery. The Special Lottery draw pool has allocated 40% of available non-res. tags, so chances are improved for draw odds. You can also apply for licenses as a group, which would be your best bet with the number of guys planning to go in your group. I don't know much about the group application process or draw odds because I've never attempted to use that process.
Good luck. If you end up considering a DIY, PM me and I might be able to provide you with more information about helpful tips to be successful.