Jump-shoot-kiting is going to be extremely difficult to multi-box. You will be better off trying to ping-pong kite in PvE. Screwed for PvP, let the poor rogue win for a change.

Easiest bet would be to run multiple computers with a wireless mouse with multiple recievers.

For a single machine setup you will need a software solution and that will probably start pushing the ToS boundary pretty hard.