[Rick 427 Cobra]

That's my original plate. The repro looked just like it except I added the CCX to the serial number.Thought it was cooler at the time. Plate is just .050" aluminum, 4x2". I think I used Paint or some similar real basic program to recreate it. Just pick the right fonts,place the writing, draw some lines and you're done. The trophy place ingraved the numbers and printed the tag. Even supplied the metal. Easy
To get fancy you could laquer the plate.