I've never dealt with this eBay Seller, nor will I now. I mean, I have specific ones I deal with basically and that is it. Besides, being from Canada, I can't bid from this guy anyway. As for Toynk, I had one issue with them, because of them stating one thing in their auction and the actual item not being it. PayPal dealt with them and all was cool. In fact, I even got my Ani ROTS LE from them no issues. I don't know the background on Sphiatt, so I cannot comment.
But like Master Kolar and Darth Vader state, use PayPal. Besides, Money Orders are non-refundable (At least here in the sticks) and Credit Cards charge their interest rates.