The 8’ catamaran dinghy is built in ply and epoxy. Maximum power is 4hp.
With oars, motor and safety gear it will weigh around 60kgs.
It is a very stable little boat.
Skill level to build is not great but some basic wood working knowledge and skill with basic power tools is required.
The 11’ monohull dinghy is actually easier to build than the cat dinghy although not quite as stable once on the water.
It can be fitted with any small sailing rig including a windsurfer rig if you find one laying around.
It will be a better and more satisfying rowing boat.
The 14’ dinghy was designed for me as an exercise machine, hence it is a bit more slippery under oars and a little less stable.
They are all built in the stitch and glue method using copper wire or thin cable ties to stitch the panels together.
After filleting and taping the inside, fitting the bulkheads and seats (to keep it dimensionally stable) the outside ties are simply ground off, bogged and taped. Trying to pull 200 ties out of set epoxy is just silliness.
A single set of dinghy drawings are included in the plans cost if purchasing any other design.
Others have said and I agree, If you’re considering building one of the larger boats then building a dinghy is a good way to familiarise yourself with the basic concepts of simple boat building. That is, you won’t be a complete novice when you start your larger project.