This directory includes all of the plans that are specifically designed for stitch and glue construction. the rc model x-1 is an inexpensive way to try out this. The dyno jet utilizes the popular jet pump powering system. there are plenty of "jet skis" that have suffered hull damage but the propulsion system is still in good. I love the looks of this boat. i am reasonably competent with wood working but have never tried anything as difficult as this. apx. how hard was it to build, total.