[BMERDOC]

Yup, check out a local radiator shop. Might as well go ahead and order a sending unit a filler neck seal (gasket, grommet) and a new gas cap. I had to do the same with my 67 shorty and I will be dropping off my 68 shorty tank tomorrow. My shop charges $125 to soak and seal. Plan on rebuilding the carb and replacing any rubber fuel lines. Dont forget the line between the cab and frame.
As far as brakes are concerned, plan to change the master cylinder and the wheel cylinders because of their rubber contents. Consider replacing the three brake hoses. Examine the condition of the brake shoes and replace if you see any cracking in the material. The best place (cheapest) I've found to get these parts so far is rockauto.com.