Hovercraft trailers are a bit of an art - there are some abominations out there. Some people seem to spend almost as much time getting their craft loaded and unloaded than they do hovering.

The Sevtec Prospector (see http://members.aol.com/sevtec/sev/props.html) is a 4-5 seat craft similar, but larger, than the Scout and uses a 80HP Subaru engine (same as UH18). It has a higher hover height than the UH18 and is capable of traveling on much rougher water. It has twin lift fans and a 6 foot propeller and can be fitted with a windscreen and hood for use in bad weather.