Once more unto the beach, dear friends, once more? Refuse to walk away from three years work and nothing to show, as this has to the basis for a utilitarian ground-effect vehicle if nothing else. The commercial market, making no bones about it, is currently geared toward the imperatives of moving people around the urban landscape in flying taxis; though I don't discount the viability of a single-seat machine if the price-point is got right. For with every product ~ whether flat-screen TV, motor-car or mobile phone ~ a tipping point when it flips from luxury to common ownership.
"If you have built castles in the air... put the foundations under them."
Henry David Thoreau