Wow PK, that company DOES look outstanding. The ebay feedback, the volume of sales, not ONE single negative feedback...isn't that pretty rare in the automotive parts business???
I can't find anything in the Better Business Bureau listings. I see the founder's name is listed in the ebay listing....but I couldn't find anything on him specifically. The website is professional and has contact info.
I think it's looking really good. You'd have the ebay/PayPal $ protection for the timing belt kit (I think it applies to other countries), not sure on the other misc. parts he got for you.