WW2 US tail code decals?

[MightyDraw]

Hello Gentlemen, I've finally been finding modeling time and have been trying to wrap up one of my current builds; a US captured BF-109G6. I used a generic stencil set of decals for the USAAC roundels but now I'd like to make the appropriate tail code. Problem is I cant seem to find anyone making or selling a generic set of tail code numbers in yellow. Does this exist and my google skills arent up to snuff? Any help appreciated!