Convert it to a spinner (Tempest), or a freely spinning wheel (Pole Position)?
If you're going to make a spinner, you just need to pull the optics and encoder wheel for your spinner, and leave the rest intact.
If you're going to make a 360 degree wheel, just remove the stops, and replace the "yoke" with a round wheel.
Either way, you'll have some sale-able parts left over- be sure to list them here if you don't need 'em.
Or you might find somebody here that wants to trade you a spinner/wheel for it the way it is.