I got one like that from Jacob's Electronics Ignition. it even has a dial-type rev-limiter, and an amp for the magnetic pick-up. Mine was installed IDK maybe year 2000>2002; so I would highly recommend one. But I think they are no longer in business. I would not be afraid to buy a used one either.
But I was thinking more along the lines of the cool-factor, having a freaky-looking mechanical device hanging off the shifter.