Wynn,
If you read any of several aviation magazines, you'll find ads for instruments and instrument panel goodies. If you can scan them into your computer, you can stretch or shrink 'em to size, print and cut 'em out for the model almost as quick as it takes me to type that in. If you don't have scanner and color printer, perhaps a buddy does? Same for the magazines...
The ads, review- and tech-articles seldom have the panel you want in the size you need, but nowadays, that's no big deal.
Luck!