My parts came in yesterday and it looks like the sprockets are going to fit really good!
the plasticky "roller" chain is sort of cool, it comes in a bag and you snap each link together. It will make things much easier than the O ring setup since I can break it at any link to take it off and on. I ordered HiTec spline hub sprockets so I made new hubs and tapped them for mounting to the sprocket and put a set screw in the hub.
I STILL have to make rollers!
but, this baby is really close to moving to the job site!
Jim