With SeaToy marinising-set is easy to marinise Toyota Hiace's engine to your own boat. Set is ready-made and fits every engine used by Toyota Hiace.
And if you compare new engine and old engine with marinising-set and both are about same capacity you note that price of SeaToy is very advantageous.

SeaToy -set is planned to take much less space.Just check it out if it fit's to your boat.