I just joined the DC Biodiesel Co-op and now, I need a diesel to supplement my old gas-guzzling LC FJ60.

I'm looking to get a 190d Ponton, but B100 degrades old rubber fuel lines. Anyone upgraded one to run bio, and what size/length of hose was required? I'm assuming it'd have to be viton, but do you get this from a dealer or would somewhere like McMaster-Carr do?

I'd like to have all the parts necessary beforehand.