Thanks, but no comments?
Nothing but respect for what you are doing.
It's hard to see from the single pic, but if that tapers to a vertical edge, it's way too fast. It would be [partially] filling the wake. A truncation would give you 80-90% of the full result. In my imagination, a vertical ducktail spoiler, or Gurney flap, on each side would 'spoil' the crosswind effect. Possibly a shuttylecock effect. Prove me wrong?
I don't have a
reverse tricycle yet, but I've been thinking similarly. I think the foundation will be 'turnpike cruiser' style fender skirts that clip together at the back to form a closely fitted wheel spat. The upper part as you might expect. HTH.