I was recently able to locate a hard to find item for my 69 300 by searching for Newport parts (a 300 search always kicks back the new ones, even with the year specified). That noted, I am planning to replace/upgrade the front buckets. They're a little ratty and I wouldn't mind a headrest. Which models (even outside the C universe) would have seats that would bolt directly into my car without any modifications? Seeing as I'm looking for white seats, preferably with a head rest, I want to cast as wide a net as possible. I'm also thinking about the back bench as well down the road.