Ethanol would work also, it's pretty much the same but higher octane, and you can get bioethanol for pretty cheap in many areas now. The latent heat of vaporization is a tiny bit lower though, 0.93 MJ/kg for ethanol vs 1.17 for methanol (water is 2.258), which means ethanol won't be as effective (but close). It's also less toxic and better for the environment as a fuel.
Plus,I can go down the street here and get bioethanol from a gas station, which can't be said for methanol.
As long as the seal materials are compatible, you should be able to use a meth injection setup for ethanol as long as you change the amount being injected, which needs to be tweaked anyway..