chaining up the belts!
Hey, Amigo, it CAN be easy to do belt drive, just make a jackshaft, chain it to the engine, and belt it to the wheel! a little well-aligned chain will not make much noise, and the belt-drive is nice and quiet, and sucks up a bunch of the drive-systems "out of round" vibration. You can shim the engine forward to adjust the front chain, and use a spring loaded Idler pulley to take up rear slack. Many opportunities to select a gear ratio this way, tho very few sheaves are factory made anymore. I use Whizzer.
Mike