I would think there is a message board local to you that you could post on to see where the locals are getting fuel. Do you have a track nearby? A local Facebook group? Might even make some new contacts. Could split a barrel with a group. Who knows.
Call a local solvent vendor in your area, they usually sell 5 gallon pails.
Ace sells gallons of denatured alky. A little different, but it works pretty good and once you use it all you have a free 1 gallon container to use for your methanol.