Where abouts in Western PA are you from? I'm in Canonsburg, just south of Pittsburgh.
If you are going to be buying a truck and camper at the same time, I'd suggest picking out a camper you want first, then buying the truck that can pull it. I know you said you were looking at TT's, but until you actually pick one out, you never know. If you do end up with a TT, a 3/4 ton truck will likely be enough. I have a '13 Ram 2500 Cummins and it pulls out 33ft Jayco Eagle (about 10,000#) just fine. But there's no sense buying a 3/4 ton truck, then decide you really like a big 5th wheel and realize you don't have enough truck.