Early A Bilstein part #'s I purchased from PST, and on a street car these made a Tremendous difference in ride quality. One of those happy moment's in life when the extra $$$ spent was actually noticeable and worth it. PST also offers a FABO discount and free shipping.
Your front shocks are the same for later A's as well. That's the part number on my shocks I purchased for a '68 Dart.