My 2 cents.
Seems like you are a perfect candidate to build the next level efoil around the new born InRunner 65150 motor with direct drive. That is a legitimate project as it is a first-off : nobody here has built an efoil around this motor.
The skills involved would be: mechanical engineering, electrical engineering, composites, CFD, …
3 to 8 well employed students can represent a nice workforce. I think that many people here would assist you especially if you are willing to publish your progress in this forum.
In the Wiki (needs some update) 
you already have the first pages of your project report.
Candidate steps could be:
- redesigning the mast clamp under Fusion 360 (preferably). As we are not sure whether this motor is totally waterproof, you might have to start with an overkill printed solution (PacificMeister light version) then move to no or low waterproofness… to test the manufacturer optimistic assumptions
- as a first step, match a suitable Speed Controller (list potential candidates, validate the choice, …) offering state of the art telemetry (ala VESC with NRF Dongle ?), then as a second step design it yoursef … adapt a generic bluetooth dongle to transmit and receive data or orders to/from a smartphone on your wrist like the metr.at bluetooth module.
- remote control: concentrate in one piece the best features from LIFT, Fliteboard, Takuma, …
- wing 1: what makes windsurf foil front wings so special (airfoil section, span, chord, …)
- wing 2: test different front wings from large and thick 2200cm2 to small and thin 700cm2. There is a Fusion360 video to make your own.
- wing 3: if you have access to a CNC, you can make your own molds… (Solidworks has a feature to design a mold from a STL, I don’t know if Fusion360 has the same module)
- propulsion 1 : why are Flying Rodeo propellers so efficient ?
- propulsion 2 : would you design a folding propeller ?
- propulsion 3 : design a DiY flume (there are a few posts about that) to test different propellers …
- safety 1: how to be sure that your efoil will stop when you fall off the board ?
- to be continued …