[kach22i]

I posted the images mostly to show you the other direction away from the glider trike and Aerotech canopies. Your profile outline tells us nothing about the design, it could have a simple curved or flattish windshield as in the last two examples.

To do a trike VW one wheel in the back, it most likely would be mid-engined. Some sort of belt or chain drive could be fashioned.

VW trikes have been around for a long time, typically one wheel up front though.

Make some decisions gtkid2002, you can always change your mind later. Just start something to kick around. No right or wrong, let it be what it wants to be.