Mounting to the larger diameter frame tubing is pretty simple...there are several ways to do it. Some drill holes and use longer studs, some mount with an exhaust mount. You bolt that to the engine, then use a couple of heavy duty muffler or hose clamps to connect that to the frame. I'll dig that part out and get a part number for anyone intetrested in that mounting technique.

As for the sprockets, I have a couple of them if any one is interested. I don't remember if they are 46 or 48 tooth, but any one interested can PM me and I'll dig 'em out and count the teeth and we can talk price (nearly free+shipping) then.