You mean the little hooks on the back of the folding seat? I thought they were the same, just a 10mm bolt holding them in place. I removed and shipped mine out years ago.
The item price is reasonable (~$90, off the top of my head.)I don't know how much you're willing to pay, especially once the shipping is added.
"Where there is a will, there is a way..."But, there's this little detail:
"Dieser Artikel wird nicht geliefert nach Vereinigte Staaten von Amerika" = "This item is not delivered to United States "
Thanks for trying, though.