can you tell me if anything could go wrong on this transaction, and how to prevent it?

Guy emails me after ebay auction, wants to buy my 55 topps set. His feedback is low (65) and he says he gto taken advantage of, off ebay, for 3k in a bank check transaction. I just got paypal payment, should I wait until the balance transfers into my account? I will send it signature confirmation, what other issues, besides a return of an empty box, should I watch out for? Am I just being paranoid?
Thanks,
Ted
Thanks,
Ted
0
Comments
def. send with all the bells and whistles!
Just for the record I have been putting EVERYTHING I am selling on the BST trade board before ebay.
D's: 50P,49S,45D+S,43D,41S,40D,39D+S,38D+S,37D+S,36S,35D+S,all 16-34's
Q's: 52S,47S,46S,40S,39S,38S,37D+S,36D+S,35D,34D,32D+S
74T: 241,435,610,654 97 Finest silver: 115,135,139,145,310
73T:31,55,61,62,63,64,65,66,67,68,80,152,165,189,213,235,237,257,341,344,377,379,390,422,433,453,480,497,545,554,563,580,606,613,630
95 Ultra GM Sets: Golden Prospects,HR Kings,On-Base Leaders,Power Plus,RBI Kings