For most class C's you have a limit of 1000# or 1500# for a towed load that does not have brakes. So you would need a dolly with either electric or surge brakes. You also need to check to see if the weight of the Camry and the dolly are within the limits of yor rig and also the hitch ratings. Most class C's have a 3500# hitch installed due to the frame extensions on the rear of the motorhome chassis.
The extra weight of the dolly will often push you over the 3500# limit, so lots of folks decide to spend the extra $$$ and tow flat or 4-down. This means a tow bar system and dinghy brakes plus a pump or drive shaft disconnect from Remco.
They down side of a tow dolly is in some states it has to be licensed as a trailer, you have to find a place to store it both in storage and when you are at a campground. Since the dolly is so short, they are impossible to back, so you have to unhitch them and push them by hand. They are a pain to load in wet weater when the ramps are slick. They also place a load of several hundred pounds on the rear bumper which can overload the rear axle weight of the motorhome.
The plus side is they are cheaper and you can usually find a good deal on a used one. You can also use them to tow a wide varity of front wheel drive vehicles.
When we were towing and using a dolly I had some magnetic lights to place on the rear of the car as I did not trust the lihts on the dolly since there was so much car sticking out past the dolly.
Oh, and rereading your post, a dolly can be described as a two wheeled trailer with ramps to place the front wheels of a front wheel drive vehicle on. The dolly carries the drive wheels and the rear wheels follow along.
If you need more info, just ask.