This is the first one I finished...

Removing the old markings was easy. A few rubs with a q-tip soaked in non-acetone fingernail polish remover and the "Booze Hounds" was gone. I washed with fresh water, cleaned the surface, coated with clear gloss lacquer, used micro sol and micro set, the applied dull coat lacquer after the decal had a chance to dry.
I still got a little silvering under the decal, but I'll add some weathering to cover that.