IMO 9000 lbs with a half ton is pushing the envelope. I pull about 6000 with a ram 1500 ,5.7 hemi, 6 speed. Mileage is 10 towing, 23 hiway dry. Never a question of stability , power or safety with this rig. A friend pulls a 33 ft trailer with a ram 2500 hemi after pulling a 30 ft with a ram 1500. Accprding to him, the difference is like night and day. The stability provided by the 2500 platform takes all the white knuckle time out of pulling a larger unit. I'm a dodge guy. I've driven the ford and the chevy and I prefer the ram. That being said, they are all good trucks and any will give you years of service. Personal preference. But if I were you, I would consider a 2500 if you indeed are planning a camper upgrade.