You could DHL it for around 150 dollars.
The old guy James at osageorange.com ships staves from Iowa all over the globe... He has recently had shipments go to Iraq... Afghanistan, often ships to UK Mexico and Canada....
He just ships with the USPS as priority international mail and with those guys from the US to UK it would be about $80 per stave I think.....
Check it out... His staves are pricey though like $200 dollars for 65" - 70" Osage. Seasoned 2 years and sealed ends.