Custom Paint job needs to come off

[ProStar190Fan]

My 1988 prostar has a custom paint job for the boat registration number. my questions is that how to i get it off or is there something i can put over the lettering that will blend in with the rest of the boat (darker red/gray lettering is on the red)? the boat has michigan registration numbers and is now registered in wisconsin. All help is much appreciated.

Tom

I cannot post pics due to the boat being 300 miles away.