Hang glider/ultralight, cheap

This is as easy as riding a bicycle...on Jockey Ridge N C the dog provides incentive to GO! Twist a quick left and soar all day!
With MacCulloch 101-D engine which is no more, a West Bend Power Bee might be great
Half-ribs preserve the airfoil
ready as a hang glider, all the requirements for ultralight are installed
A sling-seat and tricycle gear are now included