1/2 ton Chevy

Check out:

Capri Campers

You might want to look at the popup line of campers by Palomino. There are some that will work with a half ton. There is also "4 Wheel Campers" that will even go on a Ranger or Tacoma, but you pay for the lack of weight. I have a half ton and ended up putting Timbrens on my rear suspension because my camper puts me right at my capacity, but that is before I get in the truck, my wife the dog, and the camping supplies. With the added help of the Timbrens the truck rides beautifully, but I know I'm still riding heavy. I may add helper springs before I'm done.

There simply aren't many 1500 TC options. The TC brochures that claim a TC fits on a half ton are about as close to a lie as you can get. IF you had a 2wd, reg cab, long bed 1500 with no options (manual windows, vinyl floor, etc) and it was only the driver and not much luggage you might make it work. That's about the only way.
I'd be willing to bet that after you figure passengers, pets, gear, fresh water, propane, food, etc. you will be over weight with even the Lance 650.
I once had a 1500 Dodge and an 8' pop-up TC. I was 600 pounds over the truck's GVWR with no passengers and very little gear.
I've since upgraded to a dually and I'm still over my GVWR with an 11' camper.
Truck campers are heavy.

You will be overloaded with the 825. There are things you can do (helper springs, airbags, tire upgrades, etc.) to minimize the effects of the overloading, but it doesn't change the basic facts.

Now, what you choose to do with that information is up to you. Many, many truck camper rigs are over their GVWR and manage to operate safely day after day. In case of an accident, though, the responsibility is yours.