There's one on CL in Greenville, SC, which I believe is the car you are asking about. Check to see if the car has the tell-tale stencils for the unit number, which are typically found on the doorjam and under the hood. Here is one in our VIN Project with the numbers shown -
http://www.specialservicemustang.net...info140284.htm
When you go look at the car, please take a photo of the VIN label and buck tags if possible. The DSO number in the lower right corner of the VIN label should be 6-digits. The car could have been ordered by a small agency instead of the SCHP, so keep that in mind as a possibility. Hopefully, the seller will have some original documentation, too. Good luck!
