Richard Gray sells a 2KVA, 240VAC to 115VAC step-down transformer, called the SubStation, that should work for you. It has a US 240VAC plug on the end of the cable that you should be able to find an adaptor for, and it makes a good isolation transformer when you return. It's downside is the cost. It retails for $3000.00 but you can occasionally find one on A'gon for less.
