>>268067127
You can actually find the PS Move stuff cheaper used than I thought, so you may still be able to fit that in your budget if you look around for some super cheap controllers. Two controllers, a camera, and a Bluetooth adapter should be all you actually need, and you may not even need a camera or Bluetooth adapter if you already have ones that'll work with PSMoveService.
https://github.com/psmoveservice/PSMoveService/wiki