Welcome Rick and Alex. Looking forward to seeing progress on this 1985 NC SSP.
This car is part of a group of 37 consecutive 5.0L coupes (FF251153 through FF251189).
http://www.specialservicemustang.net/VINlist/85VIN.html One other in the group has recently been up for sale, but is a different special order number (#0687) than yours (#0691). Looks like less than a dozen are still alive or on the road today. I ran record checks on the group in Jan '13.
Here are some threads that may be of interest to you:
Records of all 37:
http://www.specialservicemustang.net...ad.php?p=38239
FF251187 For sale in NC:
http://www.specialservicemustang.net...ead.php?t=4943
bought by xxtrpr:
http://www.specialservicemustang.net...ead.php?t=5000