Im afraid I would have to side with Bill, especially since it is such good condition and its a fire truck. How about seeing if you can find another truck of that vintage for your hot rod project? Most folks turn COE's like mine into car haulers. With the comments and interest I get, I'm glad I restored it stock-ish.
Nice truck and welcome to the bolt. In the end its up to you, its your truck. Do what makes you happy.
Billy
