Just paid $4.07 for diesel here in South Florida today. Do you have a source for WVO? I have thought of doing a WVO conversion as well but I figure by the time I do it and hopefully find sources for oil, I make break even or worse. It takes time as well. Currently I don't have the time or space. Just some things to consider. Not trying to burst your bubble, just relaying some thoughts.
1997 F-250 PSD 4x4 5 speed 4.10's Longbed extra cab AKA "Orca Blanca" with a Banks 3" downpipe, Riffraff Intake, and Firestone Transforce 235 85 16's
2012 Ford F-350 PSD 4x4 Lariat 6 speed automatic CC LB DRW
100 Gallon Transfer Flow fuel/tool box combo. Add A Leaf installed rear springs. All stock otherwise - so far