Looking for a joystick-driven controller

I am looking to build a joystick controlled side-by-side vehicle. The system I am looking for would be 1-4VDC with axis joystick control of a gear drive motor and a liner actuator with some programmability in the power curves. Do you have any products that would possible work?

All our controllers can be driven by joystick, where the joystick can be two axis 0-5 volt, with 2.5 volt being "idle", 0 Volt full speed reverse, 5 Volt full speed forward. You can drive open loop, or closed loop position for the actuator.
There are few parameters you can adjust as far as power curves.
Our controllers are very flexible and there are many details for which it would be best that you download the manual at our web site.