They are all different from series to series, and remember HQ Belmont and HJ Holden Sandman are much less "blingy" than HQ-HJ Kingwood Sandman and HX-HZ Sandman. Also are you talking outside only, or inside as well? But, I tried to summarise (left out stainless around grilles):
HQ Belmont Sandman and HJ Holden Sandman:
Chrome: Bars, Mirror stalks, door handles, Belmont and Holden badges, top tailgate handle (van), bottom tailgate handle (ute and van - I think these are all chrome?), inside door handles.
Stainless: Windscreen surrounds.
HQ-HJ Kingswood Sandman (over and above Belmont/Holden):
Chrome: Tail-light surrounds, scuff plates, Kingswood badges.
Stainless: Gutter moulds, moulds behind doors.
HX, as per HJ Kingswood Sandman except:
Lose chrome mirror stalks.
Lose chrome door handles (painted black).
Lose badges.
Lose raw stainless windscreen moulds (painted black).
Lose stainless gutter and behind door moulds.
HZ, as per HX
Can't remember if Kingswood and hence HX-HZ got chrome door lock knobs or not.
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