both links are dead now. i personally know the guy you are talking about in az, was this his blue Dart? if so, he told me that he has had some phone calls since selling it, with the poeple that were calling him claiming that the car was an original Hemi car.
Yes he is the guy who built it in the mid-90's and sold it to a guy in Iowa.. I think he goes by HemiCop (the original owner) and just sold a yellow Racing Dart not long ago.