As mentioned earlier in the thread there is nothing wrong with running ethanol but it's but harder to get and availability is why most don't run it also the fact that you need all supporting fuel system mods (eg any plastic or urathanes replaced with stainless steel) basically a treated metal. Aluminium is a no go because it will corrode. There's a wealth of info out there, just google e85. May even be worth talking to csr about their propuct as they are a supplier.
"Soft metals such as zinc, brass or aluminum, which are commonly found in conventional fuel storage and dispensing systems are not compatible with E85."- http://www.in.gov/idem/catalog/guidance/la-072-gg.pdf/
"Corrosion: because the alcohol in ethanol corrodes aluminum, FFV components are made of stainless steel and E85 pumps must be modified or manufactured with stainless steel to prevent corrosion."- /
"there are only four acceptable metals to use, namely silver, copper, treated brass, and stainless steel."-http://gillesenergies.webs.com/buildyourownstill.htm/
http://www.ethanolfacts.com.au/
http://running_on_alcohol.tripod.com/id26.html
Good luck hope this helps.