They are seeing outboard manufacturers in Asia stepping up and supporting a 15 hp 4 stroke tiller class. Ron Hill has been promoting similar sized motors with race props. This video has a large number of entries. All motors appear to be out of the box stock motors. The boats are all similar as well.
I think we could do something similar here. The hull could be a light build open style delta. No deck but the hull should have a setback built into the boat and a foam core type floor so the boat will float should it flip.
The boats would all be the same. The motors would be 15 hp 4 stroke. One or more manufacturers may want to support the class with special deals on motors . I am sure Ron Hill would help by developing props for the class.
There could be a winter work shop where entries in the class meet and work together to build boats.
https://www.youtube.com/watch?v=2pNETnjB0Os