That's unfortunate. But those sliding doors in below link will work too same idea $100 more expensive is all, check the installation manual, the door frame is also assembled same way. However i would highly recommend going with the single panel acrylic approach by removing the horizontal beams i posted a while back instead of the many smaller acrylic panels in my original post. The reason is because at 4x panels, each will only have ~21" height, given the deep shelves of 22" it will not display well at all not to mention a lot of wasted shelf spaces. So use this door frame just like other one, and go with 2 single panel.
https://www.ikea.com/us/en/catalog/products/S29898771/
edit: you CANNOT use acrylic panel dimensions posted for the other door, need to order the new doors first, measure it yourself, then order the acrylic panels. As they have different frame width, my acrylic panel dimensions for the old sliding doors will not work for the new one.