[Aussie Mike]

I've often toyed with the idea of transplanting the motor and jet from a large Jet Ski into a 10 foot tinny. I reckon it'd be just the ticket for running up and down the Goulburn river, never having to worry about snagging your prop on a submerged tree trunk etc. It'd go pretty well too.

There's regularly beat up old jet skis on eBay for a few hundred dollars.

Cheers