Modern seats in a 67 barracuda

So which year Sebring seats would be best to fit in a 66 Dart with the least amount of modifications? And does anyone have any in Florida that I could put in there?
I use both a 98 and a 99 for the 66 dart of mine I have a convertible so it took the rear convertible rear set too (hey cloth for the summer and leather for my winter)