Hi Steve,
For your interest -
There was this 82 CHP that was listed just months ago on many Mustang forums, including this one (and it has sold as of March 2011). It was pretty much an original unit purchased right from CA. The below link has pictures of it and despite it's age & condition, it was in really great condition.
I'm not sure how the Seller's CHP # 0513 would correlate with an "E" number though...?
http://www.specialservicemustang.net...ead.php?t=3042
Thanks for sharing your pics, stories and info, definitely really interesting!