Frank,
You can switch your clone engine to alcohol by enlarging the main jet 1.5 times as a base line and go from there. You would also need to advance the timing.
Alcohol really isn't practical for daily riding though. If you have a one gallon gas tank, you'd need a 2.5 gallon tank to do the same amount of riding. And factor in the cost for alcohol and it's simply not worth it. Additionally, you need to flush an alcohol engine after each use and since there's always fuel washdown in a piston bore, the oil has to be changed in shorter intervals. Alcohol also draws water from the air, so contamination is very common.
Alcohol is good for racing though. It cools the charge (air/fuel mixture) and also burns cooler. Cooler (latent evaporation) equals more horsepower. You could also take the plastic "parasitic" cooling fins off the flywheel since you do not need addition cooling on an alcohol fueled engine. And alcohol has an octane rating of +110 so detonation is no longer a factor in higher compression engines. Alcohol contains oxygen, while gasoline doesn't.
Hope this helps...