I highly recommended using Buyee.jp for JDM item. I did more than $10,000 transaction with them and I do not have any issue. The customer service of Buyee.JP is very helpful if you are not sure about the product.
Some features I like about Buyee.jp
The shipping service is fast and insured.
The multiple payment methods.
You can consolidate multiple items and ship out in one shot.
31days free storage.