If it would help, I have a nice high quality scan of some 1/8 scale gauge faces that scale down nicely to whatever size you need, printing them on glossy photo paper works real well. they are a complete "street rod" type set of speedo, tach, oil pressure, fuel, temp and amps in both white face and black face. I'd be happy to email you either a Photoshop file or a jpg if you'd like, just send me an email.
Tim