You might want to try this guy:
David Strubb
312 731 2427
dstrubb at berkeley dot edu
.. he has a sign on his boat offering it for sale for $2500. Not sure
if he's open to a charter but it's worth a shot.
:: To whom it may concern,
:: I am an experienced dingy racer new to the bay area. I
:: am looking to get into the V15 fleet as it seems to be
:: the most active small boat fleet in the area. It has
:: been suggested to me that I attempt to charter a boat
:: from someone that is not using theirs. I am willing to
:: cover whatever fee's maintenance costs, etc that are
:: necessary. Please contact me directly at 702-249-9604 so
:: that we can work something out.
::
:: Thank you