Obviously someone's done up a HZ to look like a HJ Sandman. The dealer bit is a bit of a tall story...unless we're taking a used car dealer in the 90s.

Anyway, as far as I know (please correct me if I'm wrong) Hq/Hj never had the hq/hj style sandman script sticker on the tailgate. I think classis carlectables/trax put the sticker there on their 1/43 models around the late 90s and a few real cars restored following that put them on thinking the 1/43 models were accurate. Probably dates the restoration to that period.