Any idea of curb weight of a C60?

[72C10chevy4x4]

I've spent a lot of time searching the web for the weight of a truck comparable to a 77 GMC 6000 or Chevy C60, but come up empty. It has a 350, single axle (standard) with a steel flatbed with wood deck. My guess based upon some shipping sites is around 9000-9500 lbs dry weight.

Can anyone help? Trying to get this thing hauled on a rollback, but has to be less than 10k lbs and not sure how to better determine weight. thanks!