oh oh oh. gotta an idea!

Yellow "bannana boats." The are inflatable kayaks.
Very light
Very portable.. just roll them up
reasonably fast
much cheeper than all the other stuff.
Besides trying to compute BTU to KW to BHP, SHP, Jules, moles, etc can
be rather confusing for someone llike myself who still has 1200
flashing on my VCR.
Bob