Any advice for full timing in something this light?
Iv'e full timed in several small trailers and motorhomes.The best small one was a Beaver no-slide 24' Class C.Couch/two chairs and a full rear bath..Very comfy for three of us and pets.
Pick the right floor plan and you won't have an issue being smaller realizing the storage space not available.
As for the truck,you have more than enough truck and power for most trailers up to 26'.I pull a 30ft tongue to bumper with a F-150/5.4 and it does well,as well as my sons HD2500/6.0...