George Stauffer, based out of Wisconsin was very active in the 80's buying and selling Cobras and GT40s. He might have some info.
www.staufferclassics.com
CSX3216 (white, 427 non-SC) was in that area in the 1980's as well. It sold at Gooding Pebble Beach back in 2012. Not sure who the current owner is.
Good luck