Is a Sandman still a Sandman if it's tags are gone???
No. Tags and chassis package together are the ID for the "sandman" No tags = Mockup

Is a Sandman still a Sandman if the chassis doesn't match???
No. The whole car in my eyes is not a sandman. The tages are a sandman yes. But the tags could be put onto any other van. Does that make that van a sandman??
So the various sets of sandman tags I have here. Does that mean I own several sandmans as soon as I bolt them onto a new body?? (they never will be btw)

Is a Sandman still a Sandman if it has had a body swap???
Yes. the "sandman" is in the tags and chassis package. Aslong as its done right and to right series and plant build.