You have to give the guy top marks for persistance and passion. Someone should start a crowd-funding arrangement to pay for some intensive training for him in basic physics and engineering, so he actually knows where he's gone wrong, and gone right.
As they say, it's what you don't know that kills you - all he needs, is to be taught what he needs to know.
After that, he could probably be assisted to purchase a proper kitplane, so he can put it together, and then be taught how to fly.
One has to admire these people - but for the good education systems we take for granted, and the fortunate positions many of us have been born into, any one of us could easily have been him.