Just FYI for folks in Texas. I found a refinery out of Corpus Christi that sells ethanol free 87 octane gas. You have to buy at least 500 gallons though. I and a few other guys split a 1500 gallon load (delivered to two areas). The price was $3.25 delivered from Corpus up to the San Antonio area.
I know some states have good availability on non-ethanol mogas, but in my area it's very hard to find.