Hi everyone, I'll do my best to answer that question about the blank key number.
My original key, had no blank number, it was worn off. On my 4th lock smith, she looked at the key, and said "I can fix that easy"..and she did. She just walked over to a rack with blanks on it, picked out the key in less than 30 seconds, and tada...new key blank.
On the new key, the number is: K1122D and BN1.
Hope that helps everyone.
Donny55