I have sets of NOS MUSTANG letters for my 66 GT. They are the later style stick on letters...I know, not really correct for the year but I hear so many stories about the repro letters not lining up. I have a pair of NOS fenders for the car and am starting to get the car ready for paint. I need to decide to use the stick on letters and not drill holes in the fenders or should I try a set of repros and drill holes in the fenders for them???