Rich, I think for running E85, in particular, or spraying alky, etc., I would go with Eric's and Bob's set up if you are interested in learning how to tune with such. It will run out of the box and is already set up for our cars so you will avoid the usual "it won't start" woes that accompany the usual aftermarket set ups as it is truly plug and play.
I am always interested in learning new tech even if I may be old enuf to have to relearn it every day LOL. I have been thinking about installing one of the Megasquirt pnp set ups on my Miata just to have something to occupy my mind.
It's not all about racing. It's also about learning new stuff and pushing the frontiers.