A dream of mine would be to setup a hostel of sorts, with an area for camping, a cafe, maybe food trucks in the summer?, surf/climbing options nearby and perhaps a partnership with schools/guides.
And the main thing: a big hangar to work on campervan conversions, with a ton of tools available and some staff supervision. The idea being that you bring your van, pay some sort of membership/one-time fee and work on it, with our help.
Perhaps do some in-house conversions for clients, but that would be just a side business to help keep things going.