Tips for buying parts in europe

After using a pre build server for a while i’m looking into building my own soon. I found this subreddit and i really enjoy the great build guide and all the information here!

I’m currently looking/shopping for parts (or replacements) online on ebay, amazon etc. but most of the time the seller is ofcourse in the USA. To ship these parts to the Netherlands it will cost me probably double the original price.

Are there people in Europe that have some tips for buying used parts (new parts is not really a problem but tips are appreciated) in Europe? I’m planning to build the Ulta quite "plus"build.