You will need a 66 Marlin Kit, I think I have a body laying around to fix that pillar problem. The Marlin shared the same front sheet metal and general body shape , except for the roof of course. The Johan 69 SC/Rambler prostreet is a completely different body shape and size. The car you have is a full size and the Scrambler is a mid size or compact. I don't see anything wrong with the fenders, tho. Email me.