He could use Bitcoin partners to act as a security against borrowing the money. He could presell the vacation days at a discount to generate cash flow. Get some early support from the Community he is building the paradise for. He could build movable Tiny Houses on some of the waterfront acreage while other parts are being built up. Start an Akon bar/restaurant that he could brand out. Promise to be there one day a week to help generate a good vibe for the budding resort.