Hmmm. Some comments do not make sense.
1. You make more power on non-ethanol gasoline. Ethanol has an octane rating of 113 and is used to increase the octane rating of any gasoline it is mixed with. There are, of course, other octane boosters but ethanol is pretty much the choice of almost all manufacturers because it is much cheaper. All cars in NASCAR run on E15 (since 2011) and produce more horsepower than they did on non-ethanol laced gasoline. If you actually are making less horsepower it is time to determine why and correct (timing? carb adjustment? or???)
2. While it is true that ethanol does have its problems provided your ride has updated rubber parts in the fuel system you should not have a problem with rubber being damaged.
3. Ethanol is actually better suited to accommodate a small amount of water contamination as the water will mix with the ethanol while it does not mix with gasoline so settles to the bottom of your fuel tank (of course ideally you would NOT have water in your tank at all).
Having said the above I too sought out non-ethanol gasoline as long as they sold it here in Los Angeles but it has been a long, long time since it was available at a gas pump in a regular station and have not experienced any problems because of fuel.
