After following a lot of links and reading everything I could find I was left looking at a car conversion kit motor which was not very expensive....
A very intersting concept, Here is alink from a UK manufacturer with a permanent magent motor for vehicle operation. It falls more into the...
Thanks for the link, I have the feeling that the plastic pontoons are a bit small for carrying large loads, just from what I saw in the pictures ,...
You might like to look at this site where someone has designed a "houseboat" to be driven by his car, Some what smaller than you are planning but...