I have, once… my IB-6S went together in 13 days from unboxing to playing. Just oiled and clear-coated with polyurethane and it was beautiful, just as it is! But, to be fair, I wanted a timber-grain look in the clear, I didn’t want a mirror finish.
As far as international shipping goes for these cases, I’ll have to see what DHL would charge.. I’m guessing it’s probably not that much more than what they charge for kits, which isn’t cheap, but they are so reliable and fast I’m sure most people don’t mind.
I’m thinking of making the case a purchase-with-kit option though… so they’d be sent at the same time. That way you’d at least save on the shipping cost of the kit.