IF...
it's got less than 100,000 genuine kms.
has original factory paint, and is absolutely rust free... (i.e. no bog),
and never been hit in an accident... Log books as well.
And would fetch even higher if it was in white!.
..
However, if it is in goodish condition, probably ~3700.
If its one of those rust ridden sprinter with cheap fibreglass rapair, and a home paint job, then probably about 3k...