2 or 1 tag for SSP core support

[FoxChassis]

If it has the "DSO" buck tag present with the special order number and special paint instructions (if it was a special paint unit), and that is the only tag present, the other one is missing. ALL cars had a buck tag with the last six of the VIN, the body code, the engine code, etc. Some of the early (pre-1985) non-special paint SSPs had only one buck tag and no "DSO" buck tag.