I definitely wouldn't repaint it. While Ramchargers are not very rare or even highly valued, the Top Hand decals are very rare to see now and no one reproduces them that I am aware of. Probably the rarest and most desirable part of the whole truck is the grille guard, but I wouldn't separate it. I would just clean it up, touch up the paint a bit and enjoy it. If you want to change one up, I'm sure it wouldn't be hard to find someone willing to trade you a less interesting and less historically significant one for it.