im looking at buying a panelvan and ute they claim to b sandmans just wanting some help in identifying them

the yellow van tags are
hj8wm70 8M70RFL322826J
body #166362-a
trim 1886-19v
paint 568-15949
L32 M20 Gu4

the blue ute 5-77 hx
hx8w80 8M80TGL382791X
body 235773a
trim 1898-60a
paint567-15944
L31 M21 Gv4