Why not fly to anywhere you can get a good deal on the bikes that's cheap to get to, for instance Australia, or if that's not on your route plans, North America, or Europe - and keep going from there?
In NA or Europe you'll have hundreds of bikes to choose from, it's just a matter of being ready to go with some cash in your pocket, getting there, and buying the bikes when you're there. Much better than trying to do it sight unseen, and especially much cheaper than riding them home, tghen prepping and leaving from there.
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Grant Johnson
Seek, and ye shall find.
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One world, Two wheels.
www.HorizonsUnlimited.com