Re: Regular with up to 10% booze-a-haul, or high octane w/out?
Don't forget the rubber in the carb. Other than that you should be fine. But I'd run a tank of good gas ever so often. Even E85 vehicles say to run regular gas every few tanks.
Not sure about mixing oil with it. I toyed with the idea of E85 conversion but the only place around here with that is Valero, and they are the price of Shell without the quality.