Unfortunately, there are 2 main reasons why we can't put the prices in Euros on your kit page. The first is that we take credit card payments in GBP Sterling and so all kit prices are calculated in GBP Sterling. Secondly, the Euros to GBP Sterling conversion rate fluctuates daily, meaning that the prices would needs to be updated daily, which can't easily be done I'm afraid.
The only thing I could suggest is that you e-mail round a version of the Word document kit list, with a rough conversion in to Euros on it, explaining that the prices are an estimate only.
I'm sorry I can't be of more help on this occasion.