Thanks for the replies. I did in fact use the rubber eraser wheel to remove the majority of the vinyl. Worked very well! Rather than the expensive 3M wheels I used AES wheel for about 1/4 the cost.
My original attempts were with a heat gun and plastic body chislels. Too slow, adhesive doesn't come off clean, and high risk of damaging the fiberglas/gel coat by overheating (don't ask why I know that!
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I could not find a vinyl trim supplier that could duplicate what I had and I didn't want to get too far afield from the opposite site. So I masked off the 'ghost'; wet sanded with 400; dried and cleaned the areas; re-masked, tack ragged and painted the stripes and "swooshes" with Rustoleum and a 4" roller. Tried a sponge roller first, but it left too many solvent bubbles that had to be brushed out with the brush "tips". Switched to a cloth roller from Lowes (drawer and panel roller) which worked much better.
The results are not perfect, biggest flaw is that I didn't get the masking perfectly straight or perfectly curved. But from 20' you can't tell the difference. The "swooshes" don't match the opposite side which are printed vinyl, but I will soon be removing them and painting to match.
Hope others find this useful and informative