I’ll delete this if you ask me to do so.
My experience, as a buyer, has been that the “displayed” rusted area is about 1/3 of the area that ultimately needs to be replaced (preferably with the same/near gauge metal).
And, unseen rust-out is not uncommon. Do not let a buyer poke at the metal.
Magnetic metal-thickness-gauges are available (and might be useful in the right hands).
MT might sell a very nice reproduction middle seat frame by itself. Maybe someone has advice for replacement middle seat cushions?
