I got quoted £45 for them the other day but they havent got back to me yet.

Tbf im tempted to just go with a blacknumberboard on the back if thats the case. Iv saw a few like it and they dont look too bad as long as the paint is decent quality. Would look less of a pigs ear than having a mis-match of colours.

I now know of someone that has the correct colour decal for the purple although the bike i see that he had done had panels painted but the honda was in vinyl and matched perfect.

Just an option for you but not a cheap one im afraid, ive used the black numberboards imageworks do and there pretty good.