I've put together a guide and also an explanation, with an example of fees and charges that you will incur when bidding on items on the Japanese auction site which is similar to Ebay. You can bid on items for your Elgrand which are not available in the UK, through http://www.jauce.com/ simply follow the 7 step guide below.
Here is an example of what charges and fees you would expect to pay for an item won at 10'000 yen.
This is a cracking guide!! Followed it step by step, and the email service from jauce is very helpful too, so you know when to make payments etc. Thanks a lot mate, found a replacement wheel centre cap! happy days!! bankruptcy beckons now I've made my 1st order!!! Lol