Deej, your mate could make a tidy price on the bay. I think BB set the mark with the last one and there's one on there at the moment at £157 with 5 days to go and not all the bidders from the previous one are in there yet.
That one could get sniped as one bidder is setting lower proxies than previous atempts......
I've not done it, but I did buy some parts for my RSV from the US. If I remember correctly, you have to pay VAT and import duty. The duty varies depending on what's being imported.
You could always get a friend to send you something from the US as a present?