The 11’ monohull dinghy is actually easier to build than the cat dinghy although not 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.
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.