There was a time I never recorded these in HQ and HJ. They were basically non -existant. Funny thing about recording this stuff though. Today I got sent ID off 2 x 1975 model HJ HOLDEN XX7 utes, both Acacia Ridge build. So whilst they don't exist for the last half of HJ, I am finding a few now in early HJ. Still rare as though in HQ.
Not sure how the future will treat the HQ Belmont and HJ HOLDEN Sandman ute, they will always be the poor cousin to the Kingswood Sandman and feature wise are aligned with their HX and HZ cousins (which are Kingswoods in all ways except their ID plates).