Byron the most probable reason that a sandman van is worth more $ in resale is that the iconic nature of the brand sandman makes people think panelvan first..... A bit like when people think monaro they automatically thing 2 door...Making the van more desireable for the majority of punters... Just my opinion....

As for the XX7 on the tags, when i bought my van i had a minimum spec for what I would purchase..

had to be genuine sandman, had to be a van, had to be L31, had to be manual.... The only options for me were if it was a brisbane built XX7 it did not have to have the original engine..... If built anywhere other than brisbane it had to have its original engine... It was my only compromise.....

Al