Hey all.  I recently purchased an 81 Vanagon "Westy", and I have a bit of
a problem... it's got everything I could ever want, and after spending a
few days cleaning it out and giving it a good once over (and cleaning out
the bank account in preperation of the expected engine rebuild), I'm just
thrilled to death with this little beauty.

Except for one little bug: I seem to be short a grey water tank.  The
"dreaded previous owner" (actually, based on the appearance, the previous
previous owner) apparently rigged the sink with a piece of garden hose to
drain directly out the bottom of the Westy.

I've checked the usual places (gowesty.com et. al.) and I can't seem to
find a suitable replacement.  Does anybody know of either 1. a source for
an OEM replacement or 2. a good idea of a suitable replacement from a
traditional RV source?

Thanks in advance,
Chris (Orange, CA)