Mitsubishi MTE2000D, Dig It 258 Mini Ex, Deere Z930A ZTR
I can't offer any help with OEM parts but the control cables are very likely a simple push/pull affair. If you can remove one of your factory joystick control cables and get some measurements, you can either look for a close match or have a cable custom made. There are a number of companies online that could surely provide a good replacement.