1965 Dodge Dart 270 Wagon

Nice! I too have a 270 wagon but will be pulling all the side trim off. I've acquired both a roof rack and power tailgate window for future installation. I found any kind of replacement seat covers would be expensive unless one went with generic replacements. To solve the problem I will be fitting a 65/66 Barracuda interior (rear fold down seat and front buckets) as upholstery for that is readily available (it's already been test fit and fits perfectly!). As you surmised the tailgate will be a problem unless you can find someone parting a wagon out with a good tailgate - I've bought 2 decent ones as my original is rotted out. I'll be happy to provide any info I can as my resto is both stock and custom-orientated.