Hz Sandman ???

[Absinth]

I've never actually seen those angle bits before, only the door gutter top bit that's on my van.
My van is an HJ Kingswood

Mine is a 76, just after pollution gear was brought in.

HJ panelvan wasn't available in the Kingswood variant.....

The pollution gear was introduced in July 76 at the start of the HX model...

You sure you have a HJ???? Sounds like a HX to me.