Badger.
How cold a temp are you planning on camping in and for how long?
If it is a sustained cold and your TT is not designed for it, it is iffy. A few nights in the twenties not so much. It takes a while to freeze a water tank.
The few I have met that were true winter campers had a semi-permanent set up; they came out to on the weekend to fish. They went so far as to add a skirt the TT to trap the heat underneath.
You will read of others who add heaters to their tanks and heat tapes to their pipes and still had an issue or two.
I would try a few cold nights of camping before I jumped into a winterizing project.