Why not run straight ethanol?
If you can tune for E85, you can tune for straight ethanol, and without that pesky gasoline in the mix, 5% of water, 10% of water, doesn't really matter.
And with that, you can distill your own ethanol with a reflux column from what, solar heaters, electricity, you name it, you've got it. You can fuel your own car. The grass you mowed last weekend, can be converted to ethanol. People with apple trees, fruit trees, you'll always have excess fruits, that, you can ferment and distill.
The only obstacle now, is the legality of it all. I'm gonna be running some experiments soon though. =D