They said they didn't recommend the bags for that far. They said they have a tank thing I could use but that it has to be returned the next day.

Not sure I want to drive 12 hours there and back only to have to do it again the next day.

That is what I was trying to rig something up.

We have a ton of oxygen bottles for welding. Seems like it wouldn't be too hard to make something. Maybe a couple 275 gallon totes and some oxygen ran to them?