I made one out of a HK Orange transmitter and a computer joystick the you twist for rudder. You can see the throttle roller on the top left corner of the box. Had to learn to fly all over again as your thumbs don't work any more. Something like this might work if you could get someone to make it for you. I took the pots out of the Orange trans and mounted them in the joystick mechanics.

Gord.