You're correct on both, good idea, but due to licensing, expensive. I was just thinking though, I'd bet many here have just that in their decal stash. Through the years so many kits have just what you're talking about.
https://www.google.com/search?q=model+car+decals&hl=en&tbo=d&source=lnms&tbm=isch&sa=X&ei=HfcHUa6IJLLa2wXH-oHQDg&sqi=2&ved=0CAcQ_AUoAA&biw=1280&bih=885