Hi Henk,
Sorry to hear about your loss. Happened to our outboard of the Shetland we used to have as well, insurance reimbursed a big chunk back then. But on our Seahawk we only have liability.
We have used a (undoubtedly Chinese) electric outboard engine on the Seahawk and that was not such a success. With a bit of wind the boat hardly moved at all.
This year we wanted to try a Rhino VX 54lbs, however, because of ongoing circumstances we had to get our Westerly out of the water and park behind the house and so vacation money went to the transport instead of boating.
So maybe you can give this a shot:
http://link.marktplaats.nl/a1002589257The guy only asks a small fee for letting you try the engine. If it doesn't work, no major loss and if it does you get reimbursed if you buy the engine (at a competitive price). Oh, and for my commission I'd like to hear the results - then we don't have to go try it next year!
Good luck!
Rene