I completed restoration on my 1966 Mustang convertible last summer. Have owned the car for many years. Looking to do front brake conversion to discs. I have the14-5 styled wheels, so it appears that none of the aftermarket kits will fit. Require 14-6 or larger wheels. Will NOS parts, if available, from either a 1965-66 Mustang or Cougar fit? Any thoughts?