I saw some vinyl, die-cut, stick-on letters on a web site somewhere, but in my old age don't remember where. Check Mustang parts sites. Possibly check out Mustang mags too for availability.
These would look much better than hand painting, unless you have a steady hand...
------------------
'89 LX 5.0 - 5 speed. Original Owner
'94 E-150 4.9 Hi-Top Conversion Van
|