thank you. :grinroll: i will look in to bothHi,
Veronica wrote a sticky in "classic tech" that details what makes a 64 1/2 different.
http://www.allfordmustangs.com/forums/classic-tech/71429-heres-why-people-call-them-64-1-2-a.html
As for the interior, all the major suppliers have what you need. However, repro seat frames are really expensive. I recommend you buy the frames on ebay or through a salvage yard...then buy the upholstery and whatever else from CJ pony parts or Mustangs Unlimited. They have bundled kits that can save you $. CJ even offers free shipping.