What you need to to is, buy a FF stick available (old MS FF2 USb, Saitek or Logitech) and exchage the grip for the AV8R grip (or buy a used Saitek Cyborg to use this grip, is more ergonomic and adjustable) - is not difficult to do.
Or more easy - if you fin a MS FF2, that have a neutral top handle.
Disassemble the grip and cut of the left thumb rest:
Sand to conveniente shape, fill the holes with epoxy put, sand an paint or
wrap with tennis racquet or byclicle
tape.
A custom grip, appropriate to left or right hands.
Anyway the (very) expensive Paccus Hawk (hidraulic) Forcefeedbak have a neutral grip.
http://www.paccus.com/forcefeedbackjoystickshop
Sokol1