OK, one more. This is the idea I have for the location of the ball milled grooves. I don't know if each pair is too far apart, or just right. They are based on the top set with one running up to the center of the button, and the other right between the top of the button and the top of the dorr itself.
I can't wait to see this thing with the grooves and all polished up!!!!
**EDIT: I went back out and added another groove top and bottom, I think I like that better. I also think I like the emblem on here better than the original Corvair door.