herrosteph,
You my friend have nothing to worry about. Jason is the 1# most trusted eBay seller from Japan I know. I was about to sound mean before, but I just remember I was like this with my iD L, BUT WORSE.
Dont worry so much! Trust me it will come fast. Like SailorRosette stated, he's a very nice seller and he does ship fast.
If your focusing on international shipping, dont worry about that either. It is known for it to take 1 week - 2 months, but thats if its lost in the mail or its in customs (which take forever). I was suppost to get my iD L (different seller named webwebo) within a week but mine got stuck in customs for a week and a half and ended up being two. But I wouldn't worry about this happening to you. I hate to see people worry so just calm down, relax, and eat a muffin.
- TamaTamatchi