Thermador wall Oven Part

I need a replacement part which has been discontinued by Thermador, and an article in the Eichler Network suggested posting a notice here. The appliance is a Thermador wall oven catalog #TSO G, this conventional oven is about 50 years old . The part is a oven burner block the ceramic thing the burner plugs into. I would be happy to have an oven burner block from a no-longer-used oven if a new one can't be found. Thank you.