Congratulations on finding a straight, rust free, TF one ton. I have seen prices all over the place on these. Just for comparison, I purchased my 1959 one ton flat bed with hoist in Mississippi. It has a good body with only very minor rust, a good running 235 and SM 420. Unfortunately, it also included the 18" wheels, which I have since replaced with 19.5s and radial tires. I gave $2900 for mine. On the other hand, a friend recently purchased an exceptional TF one ton for $15,000.
As far as parts availability, I purchase almost everything from my FLAPS. Brake drums are the only difficult to replace parts on the truck ,and if ever needed, are only available used.
Good luck with your find.
Steve