my buddy had an RZ, I wanted to buy it from him but he sold it instead. i am still working on building one up from parts, just it's low on the priority list lol
side note about the RZ/Shee engines. the RZ crankcases were made with much more precision than the banshee cases, bearing surfaces are truer, castings look much cleaner, and the crank area is more consistent(trenching RZ cases is much more consistent than trenching shee cases)