If it is a legitimate ebay account you do get more protections than if you buy it through craigslist. Check that is a legitimate ebay website and check with ebay first.
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Sent 10/19->WAC accepted 10/24
I-797 arrived 10/27
Biometrics letter arrived 10/29 Biometrics done 11/20
EAD: February 7, 2013 SSN:Already Have 
DL:Gonna take a month or two..haha.never bothered to learn..too scurred