Pin Weight Increases

Ok, well I guess I'll call the dealer tomorrow morning and cancel my order for the new 5th wheel before it's too late. I'm glad I didn't sign any paperwork yet! This is why I started one of the other threads. To specifically ask if I had enough truck for the 5th wheel I was considering buying. Everyone said I had enough truck, More than enough truck for the 5th wheel I was considering! I Could even go with a slightly bigger 5th wheel than what I was considering and that's what I ended up doing. A slightly heavier 5th wheel that weighs about 1,200 pounds more and the pin weight is about 600 pounds more. I thought I was good to go. I guess I should have explained in greater detail that I would have the normal camping gear that most people take with them as well. Now, it appears, my 2500HD isn't capable of towing any kind of 5th wheel (with gear) that weighs over 4,000 pounds dry and has a pin weight of 800 pounds or I'll have too much weight on the axle or too much payload weight. I've never seen anything that light! Maybe they exist but I've never seen one in my neck of the woods. Thanks for all the input everyone. I think I'm just going to give up camping because I can't afford a new truck and since the TT I have is very similar in weight to what I wanted to buy, I've been way overweight with that too apparently.