Depreciator - since your new aquisition look timber - why not bolt on some outriggers - these will make your craft so much more stable. and with a bit of design, detachable for transport.
that all looks blo*dy lovely. I'm envious.
I've been thinking for a while of getting a canoe/kayak - and am waiting for a better exchange rate to get one of these:
http://www.wavewalk.com/