I am purchasing a 1988 Ford Econoline 350 Van with 8.0 l diesel engine, how and what do i need to convert? I am a green newbie with some mechanics on standby to help. I hope to do this soon, and then travel, but the west has only a few refineries mostly in CA, I know of one in Ferndale, WA. So I am also wondering where to find biodiesel, or is it worth bringing your own convertor to make as needed??