G.day swanny, I have made myself a Tanami pump, it is not electric it is operated by compressed air, they are sold by ARB here in Mackay, none of the other 4x4 shops seem to stock them, cost is about $90 . they run on 5 lbs pressure so I use the little compressor that I have for my air bags, as I like making stuff myself I proceeded to make my own, the arb one has a relief valve which I didn't have so if I see the jerry can starting to swell I just turn it off for a little while, it only takes 3 or4 minutes to pump a can of fuel, you can buy them to fit metal or plastic cans, I have plastic, I carry my cans inside the 4by and don't have to remove them to refuel.
If you would like info on how to make one just ask I will do my best to explain.
Regards Woody