I did another count last night.

961 total HQ-HZ utes and vans.

509 x Sandmans.
136 x possible Sandmans (eg can't tell from ID plates).
316 x not Sandmans

Of the 509 Sandmans the breakdown is:

18 x DHQ
29 x EHQ
11 x AHJ
153 x BHJ
153 x AHX
51 x AHZ
77 x BHZ
16 x CHZ
1 x ?HZ (don't have chassis number and right on the changeover point from BHZ to CHZ).

Of the 136 x possibles the breakdown is:

6 x DHQ
7 x EHQ
19 x BHJ
4 x AHX
92 x AHZ
5 x BHZ
3 x CHZ

There are lots of Dandenong AHZ's in the possibles (all of the 92 bar one Pagewood example) as I have a full list of Dandenong HZ production and have been counting V8 4spd or auto Holden vans (more than 50% of these should be Sandmans, possibly as high as 90% of them). I have got all Sept-Oct 1977 production, and into November. So the list of AHZ possibles and not-Sandmans will basically double when I finish November and December (plus one in January 1978). Dandenong did some 1-tonners in December 1978 so there will be a few of these too.