Free: Contests & Raffles.
Without more points, I would focus on finding a good deer area with antelope in it, rather then trying to find an area with great hunting for both. When researching for areas the wyo game and fish site has good info on drawing odds and harvest rates, combined with onx to determine access potential.
Wyoming has gotten way to popular in the last 10 years to do this with a few points. I think even in the special draw you will be out of reach. For example an area I antelope hunt when I first started going over I could draw it as a second choice. Now it takes 5 points In The special draw. There is deer areas that you could have a good hunt if you scout. Also you mentioned taking your GF, you will not find a better hunt for her In Wyoming than you would have in Montana on public land I have hunted both states successfully with my wife. But I would pick Montana every time for her and I to go due to deer numbers and they are rutting. Now if I was just hunting by myself or with buddies with that point range you have options in Wyoming that would be enticing. You two could certainly find success in Wyoming I’m just meaning she will have more opportunity in MT and the deer will be more cooperative.
And an arrow with it wouldn't be bad either