ORIGINAL: BobH
If you aren't in too big a hurry give Gary at Getstencils.com a try. I say not in to big a hurry because he had a computer crash and is rebuilding his system etc. currently.
http://www.getstencils.com
I'm with Bob. Gary can make you exactly what you need. Here's some lettering that he did for my Ziroli Stuka. Note that I have weathered the markings, so some portions are missing.