Analogue Systems (in the UK) sell an X/Y Joystick module (RS220) based on mini jack outputs. The cost is around $160 on a rough exchange rate. You would need also to get an enclosure and PSU.
hello !
yes, analogue systemw ( and doepfer, too ) offer joystick controller modules but they have the major shortcoming of not including trigger button / output too. yes, they could be added but i was dismayed that such an inexpensive addition was not included.
best,
dave