Chevy express Towing U-haul flatbed w/ 4650LB trailblazer

considering a 04 express conversion it's priced kindof high however the seller hasn't sold in a 5 week period he's finding out the PITA of selling anything.

anyway I requested the options code marty says it's in the glove box my saab has a sticker in it's gl9ve box my trans am has it on the door w/ the tire lable.

the seller claims there isn't a lable in the glove box which is really the dog house's engines storage.
did get the tire lable but there aren't codes. could the code lable be located some other place? thanks