im getting ready to paint my 65 coupe and im shaving some of the unwanted holes from the emblems and the side scoop crome pieces. i have my bumper off and im think about closing off the bolt holes in the lower front of the fenders so if one day i decide to go with a front race valence and remove the bumper, i dont want the holes there...can i skip bolting the bumper on there and go with the 4 other bolts? or would my bumper shake around? thanks