I don't know if they ship to Europe, but sonnet has the 400 MHz G3 upgrade (which doubles as a right angle adapter) for $39.95 these days.

https://secure1.sonnettech.com/product_info.php?cPath=51_52&products_id=91&osCsid=4eeae6c7cbcb4586f092f92b7e7ec0dd