I think the technology exsists to land a wingsuit and walk away today - it just needs a nutter and some planning. You do not attach the wheels to the diver - you have a large truck etc on a runway - matching the forward speed of the falling person - therefore relative forward speed = 0! If teh back of the truck is filled with a shock absorbing mechanism that crushs on impact they should be fine - as long as they are good at accuracy!