The payment happened very early on while communication was still good and someone was able to vouch for him as a seller (in hindsight, that was probably the sole legit sale he ever made).
The HKS kit was actually sold to someone a while back and never really surfaced, so I thought it was that one.
I used Paypal as buying an item so I'm covered as far as money goes. He has until August 3rd I believe to reach a solution, otherwise I get my money back. Alternatively, what I'm going to be doing is calling Paypal directly once I get back in the states, which should get the case over with immediately.