62-66 slant6 and SB V8 K members are the same. Just different motor mounts. To put a SB V8 in your 62 Lancer, you will need to remove the heater ducting. Early 273 exhaust manifolds make the job quite simple.
My '66 may have had the side running lights added by the dealer. I bought it from the original owner Dr.s wife. She may have had them dealer installed. They are the Mopar 1"diameter type. Directional signal indicator lights on front top of fenders is factory, for sure on the '66 Barracuda.
My '66 (not a S model) Barracuda has the fish ft. and rear. Top of front fender directional lights and side F & R side running lights. From the factory.
"Westleys Bleach White" whitewall cleaner will absolutely clean the worst stinking and stained vinyl uphoulstry, door panels, steering wheels not to also mention whitewall tires. You will want to apply a silicone spray after to bring back the shine. I have cleaned the ultimate smoked in car...