If you are willing to bear the cost of P&P from the USA (or have a friend visiting the States happy to bring back a small package) you might like to have a look at the Penn State Industries website. They occasionally offer free postage within the USA and I have taken advantage with orders being delivered to e.g. a friend's hotel which they then bring home at no extra cost. I'm always baffled by customs duties; sometimes I have to pay, others go free. No doubt someone will know why.