Edwin, I had another one of those "Duh!" moments. Must be getting old. I saw a setup for about $60 for a one gallon can with hand pump and tubing.
I've yet to find an airplane gas tank. Seems no one marks the captions of their wares as for gas use, or some such, so I don't know what can be used and not. Same with tubing and fittings. I went to Tower Hobbies where I get a lot of my modeling stuff to look without success. Seems to be all glow stuff. Caley