I can't promise anything, but I'll have a look at some point (Maybe tomorrow, maybe next week, maybe in a few months.. Although, since I'm typing this, probably tomorrow)
Aircraft (The main mod) doesn't do anything with fluids, and since all my code is simply derived from it (Essentially just copy-paste with new values) I don't think I'd be able to do it easily.
Actually, thinking about it some more, it'd be quite difficult because I'd need to integrate it with the pumps somehow
For now though, you could transport barrels