Hi,
By coincidence I spent this morning uming and ahing about the gilimoto tank. The problem is that they don't seem very keen on shipping the tank outside Brazil -- I think that Robson has asked them (and he speaks the lingo slightly better than google translate...).
On top of that, I looked at courier services and the cheapest seem to be of the order of �300+ to ship a "volumetric" weight of 15kg from Brazil to the UK which is more than the cost of the tank! I have no idea how you might use a sea freight company to ship a small parcel without it getting lost/crushed. And then there's import fees etc. etc..
I then wandered the web looking for alternatives and I'm suddenly tempted by the
Acerbis front fork auxilliary tank (�60?) but, rather than put it on the front forks, glue/tape/tie/bungee it to the back of my panniers -- one either side for an extra 10l. I've dug out the dimensions (10 x 9.5 x 4.5 inches) which would fit snugly on the back without them being overly exposed in a crash.
Current research is on how to plumb them into the existing fuel lines.
As noted above, the hard core will just strap a jerry can or two to the back and carry a funnel. I need to learn how to bend bits of metal and create a harness...
Cheers,
Ian