The Revell 63 snap kits (both roadster and coupe) are great curbside kits and should bash with the Revell 67 kits, which also are in both roadster and coupe bodys. The only external differance between the 63 and 64 are the grille, rocker moldings, wheel covers and the lack of the hood grids, which arn't molded in on the 63 snap kitanyway. Madelhous makes all of these parts.
Are your modeling skills up to changing the side fender vents on the 65 and 66's on one of the other bodys? Modelhouse does the hoods, grilles and such. Add the photoetch parts and.......