Chip-
what look are you trying for?
A vehicle alone in a field? An urban setting? In ruins? Will there be figures? Action? (at rest or in combat?)
I built a diorama with a DML Panther A (early) in Italy. The scene had the Panther parked in front of a bombed out Italian farm house. Pretty simple but conveys the location and time with the feeling action is about to happen.
Try drawing the ideas on paper moving the Tiger with the background until you get what your mind likes. Best of luck.