Good catch! We had someone else do our website for us, so we're still ironing out the kinks. We have an 800cc, 25 hp Robin-Suburu engine.
The roll-cage is not a roll-over protection system, it is a brush guard. And in 14 years, we've never had a roll-over due to the engineered low-center of gravity.
Dump boxes are available. 5 feet by 4 feet, by 1 foot tall is the largest one available.
850 pounds on water, 2000 on land.
Thanks for your questions and interest.