looking for a fold-down 2nd row burb seat

[burber]

I'm looking for a 2nd row seat that folds flat to basically extend the bed in my '72 suburban. Apparantly they only made such a seat for '73-up burbs, so if anyone has one of those for sale, I'd be interested in buying it. I attached some pictures of one from a '78 burb.

 

[RicksTrucks]

I have one out of a 77 Suburban. Red interior.