A 2500 series truck should be the bare minimum for a truck camper of any description. A single rear wheel 3500 would be a better choice.
I once had an 8' pop-up Palomino TC. It had no bathroom, no waste tanks, no water heater. I had it on a Dodge 1500 extended cab short bed truck. I was 600 pounds over the GVWR with only me in the cab.
My next camper was an 11' hardside with no slide outs and no basement. I had it on a 3500 SRW reg. cab long bed. I was 1,200 pounds over the GVWR with my wife and dog in the cab with me.
That camper is now on a crew cab dually and it hauls my family of 5. I'm still over the GVWR.
Don't even think about a 1500 for a TC.