Nick Easthope (see other reply) has original drawings and all sorts of stuff and contacts. He runs a newsletter, is very friendly - and he seems a busy man. There is also a Yahoo message site, mostly used by Americans.
I have CN35 190 'Malfi'. Her Sea Panther is still going (I hope) strong. I did not know that Watermota had ceased to trade.
What's the name of your CN35?
The Yahoo message site sounds as though it might be interesting, however I could n't find it. Do you have any more precise details? Glad to hear that your Seapanther is still going strong. Do you still use the Neco autopilot? I am at present investigating updating the electronics side whilst retaining the excellent drive unit.