I have the same thing overhere Peter. I donīt buy anything locally anymore, but only direct via internet from the States. Have to pay the shipping, which is normally the same price as the parts, and 60% tax, but its still much cheaper then buying locally.
I needed to change the radiator in March and went to Miami myself to get it (together with several other parts) and finally didnīt have to pay the 60% tax. This worked out for me, because i can travel on reduced tickets.