Nice save! I do recall this one, glad you were able to get it.
There’s quite a few threads on here RE: Utah SSP’s and I’m sure a few members here can help out.
Keep posting your progress updates and/or any images here too.
Did you check this part of the site to see if your VIN is in then,ist:
http://www.specialservicemustang.net/VINlist/86VIN.html