There are many contradictory opinions about using a Sniper or Super Sniper with E85. I'd recommend calling Holley if you wanted to run straight E. But if I were you, then I'd setup one of the inputs for a flex sensor, then do some mixing with the idea to be able to fill it up with gas when it gets parked for any extended period. 30-50% ethanol will put your octane in the 96-102 range which is plenty to get the benefits of E.
I didn't notice you mentioning that you've added any inputs or outputs, so in case you haven't, it's super easy. And setting up the table for a flex fuel sensor is just as easy. Have you messed with any of the I/O's?
My two cents - glad to see you got out and enjoyed your car - it's really a beautiful ride 🙂