How many "H" code 71 or 72 Demon 340's remain?

I picked up a 71 this summer not far from me. The guy had owned it since the late 80's, street raced it for a bit, then decided to cut the whole *** end out of it for tubbing. Well, that didn't happen and it sat all these years and parts disappeared, and the rest of the car rotted so bad it was not worth restoring. It was too bad because it was a factory B5 blue,4 speed car. I ended up selling off some stuff that came with the deal, and the rest went to National Moparts.