A liner question

A liner question

My daughter is a congenital bilateral amputee.  She is in need of new liners. Without new ones, she will not be able to walk at all.  Her legs are relatively new. 

Ossur stopped making her liner and we are desperate!

She needs a Ossur Iceross Dermo Uniform Locking 6mm Liners Size 18  *Medium tapered

My question is:  Do you know of a place that could custom make this liner? We spoke with Ossur and they won't help us.  

If you have any  other ideas, please let me know.

Thank you!