What are the odds that the guy with access to my account was also the seller?
About 100%.Quote
I also was the n00b here who hired an expert who I was hoping would offer such advice and keep the deal secure.
Unfortunately, not many "escrows" take that job seriously while they take a considerable payment for something as simple as reading a few messages and sending one transaction.Quote
Isn't that something a escrow provider should at least show some effort in trying to do?
I tried, but clearly it failed 
I'd offer to do it myself, but I don't want to dox myself to handle physical goods.