Check this out... http://www.dancolettering.com/store/turbocoupe.php.
Cool, too bad that they don't have the tire size decal.
If you can supply the right image, the guy could probably make some.
I'll have to send in my emission, coolant, and fan shroud decals and see if he'll make some for us '87-'8 5.0 folks...mine are torn a little, but still suitable for reference
You can get those from late model resto.