Or go to www.car-part.com to locate one. I found one near me that way. Then I sent it (along with my original BECM, and my engine ECU) to Sam who lives near Los Angeles, and he has the ability to unlock the used BECM and then transfer your settings. You can contact him by searching for "BECM" on ebay and his ebay name is 818Sams. Seems very knowledgeable but we will see if he can work miracles for me as he currently has all my hardware in his posession.
He also has used BECM's that work, so u may not have to go to www.car-part.com to find a used one. good luck