Thermador double oven glass pannel Model CT 230-4 00142453

Thermador double oven model CT 230-4

I am looking for a Black glass oven pannel part number 00142453 ( or 14-31-746-01) for the lower oven door.

I have looked on ebay and I am told from the Repair clinque it is discontinued.

I am lookin for a new or used one.

Thank you,

Harry