http://motorbicycling.com/f26/might-well-get-thread-started-4754.htmlWhat bike are you intending to use. This may help me assist you better.
The kit as a whole won't work, but elements of it will work for the application.The kit will not work on that frame. The reason is that there is no way for the chain coming from the jackshaft to meet up with the chain on the chainring. The only way it can be done is for an idler shaft to be created in the approximate location of a normal bottom bracket in relation to the engine. The cranks and jackshaft would both drive the idler and the idler would drive the rear wheel.
Those items listed plus spindle will be about $126+~$10 shipping.The kit as a whole won't work, but elements of it will work for the application.
How much for the front freewheel assembly with cranks, jackshaft, bearings, and gears/sprockets?
I really don't want to buy the kit just to cannibalize it and toss the stuff I can't use.
Don't need engine mounts, jackshaft plates, etc.
Correct. But I'm not sure how to explain "off center" other than "not on center".Can you explain off center? So you are saying the keyway in the shaft does not run down the center of the shaft? Pics please.