OK, I know it's not a Sandman, but hopefully there are enough ID experts on this site to help ... any way of telling whether the van in the now-ended eBay item 310237427924 is an HQ or HJ? The advert appeared in February 1976, so that's no clue. The eBay listing said it was HJ or HX, but the advert appeared before the HX. (Sorry, I can't figure out how to attach the actual pic here.)