Please help verifiy sandman

[daneger76]

Hi guys first post. I am about to start this project for my dad as a surprise but I just want to be 100% that its real sandman before I start throwing heaps of cash at it.
Details as follows-

Holden HJ Panelvan 02/76
GVW 1950kg
Seat Cap 2
BHJ48561A
Model HJ8WM70
Body No 179891-A
Trim 1899-64V
Paint 568-1/342
Eng L32 , Trans M20 , Axle GU4
Chassis # match's plates
Full GTS features inside and out.

Thanks for help guys

[HK1837]

It probably is but you can't pick these from tags. And you can't verify from tags either as they are easily swapped to another body.