Careful now....
Since you have a 2500, your GVWR is 8800 lbs and NO MORE!
Your truck by ITSELF, weighs roughly 6700 lbs full of fuel.
Then, you have to add the weight of the hitch, the weight of you and your wife, and anything else you pack in the truck.
For the sake of argument, let's just say its you, your wife, and the hitch, and a few extra add on-items.
You are looking at an extra 500 lbs. roughly.
So, we are now at 6700 + 500 = 7200 lbs.
Now you take 8800 lbs - 7200 lbs and you are at 1600 lbs left for what you can actually carry.
If you want to carry 1920 lbs of hitch weight, you're gonna have to leave either you, or your wife behind.
I STRONGLY recommend that you do your homework before buying. The RV dealers will sell you anything that has wheels. They don't care if you are overloaded. When we bought our 5er, I cam completely prepared, knowing exactly how much TOTAL trailer weight we could carry, how much HITCH weight, etc.
This knowledge made the decision for us between two fivers. We ended up getting the smaller one due to hitch weights being too close to the edge for my liking.
Shawn