If you can find a way to inboard the shocks (beefier upper wishbone extended past the pivot point and have the shock/spring mounted on the other end inside the body vertically, cantalever style?), you could put teardrop profile cover over those arms and cut down on a surprisingly large amount of trike drag. Even if you had to widen the body a bit to achieve it, I think you'd make a significant reduction.
Or maybe a tried and true pushrod style inboard shock setup?
Obviously just thoughts for a later iteration
This project is super cool.
Sam