I have an '84 that might just work for you to get yours up and running or to re-assemble and run it.
Link here: http://www.microskiff.com/cgi-bin/yabb2/YaBB.pl?num=1240274825
I've been a lazy bum in not posting pics as I've kinda been thinking one day I'd have the time to work on it but realistically I don't see that happening any time soon. I can post pics if you'd like to see it.
Lots of new parts on it, and the motor is in overall very good condition so it should make someone who's handy with a wrench really happy.