Shouldn't the option sheet indicate how one could order these cars? I can't speak for Jim's 68, but the option sheed for my '67 shows that the HO packaged was a 326 4v with stripes, the Sprint package was 230 I6, 4v and the 400 was a single package (no HO or Sprint option). The option sheet also shows that the HO rally stripe could be added to any car and deleted from the HO package.
Vikki: PM your email address to me and I'll send you a JPG of a 3HF code car and its VIN.