Isn't that going to cost a lot of money ?
Surely better to pick something up that is already inboard but with just a knackered engine. I think the legs/Jet drives are expensive. Certainly if your starting from scratch thats going to be a whole lot of engineering out the back of the boat just to save a few quid on an old van engine.
Prove us wrong Matt. I'm not an engineer but I just think you could find easier ways to get on the water.
Heres some other projects for you to consider.
http://www.boatsandoutboards.com/view/F123046/
http://www.boatsandoutboards.com/view/F121965/
http://www.boatsandoutboards.com/view/F109486/
By the way if anyone looks at Babcocks for 5.4 Seariders they seem to be moving them on pretty quick.