Newbie considering used Lance 1181 purchace

Sold it for a triple slide Chalet.Very nice camper but very heavy! I have a 5500 on order. The 1181 will fully load a 3500. I had a 12 Ram 4x4 and it scaled at 4500 from and 8500 rear. That was fully loaded for travel. The truck empty was 4500 front and 3500 rear. The rear end in newer 3500's is rated at 10K so with minor rear suspension mods you should OK with the 1181. Notice that it sits pretty much entirely on the rear axle. Performance wise, the truck barely knows it's on there. I can easily accelerate up a 7% grade and the exhaust brake is awesome. Handling wise, you are going to know you have a load. It's fine, but you will know it's on there. You just need to drive smooth enough not to empty the cabinets and you will be fine.(Of course, if you do that more than once your wife will beat you with a stick! Ask me how I know this!) I typically drove it 68-70 but have run 80 when I just wanted to get home. The truck is great but fuel mileage will plunge over about 68.