I seem to attract a lot of this type of work, I simply turn it down.
How much are they going to want to pay for you to vinyl the lettering? you could spend an hour finding the right font, only then to find out it’s been bastardised in all directions and kerning, and that’s just one of the fonts, then to apply it perfectly aligned… the typcal £25 budget just isn’t worth the headache, or the returned item when the very hot rocker cover crinkles the vinyl!
I always tell them to mask and paint, powedercoat as mentioned above, or take it to an airbrush artist.