Hey Nicko, the best person is Andyport, send him an email, he hasn't been on the forum much but pretty sure he'll still be able to make you up a decal. You got his email address ? The vinyl logos look much better as you can't see the clear paper under the logo.
What I did before Andyports logos was buy blank waterslide paper (from ebay - pretty cheap a few bucks for A4 sheet) and printed the logo with an inkjet printer. Then seal it with a spray clear coat before you dunk it in water and apply it.