Hi,
Email ETO directly, they may have the parts you want, just not listed.
You can message Daryl B. Turner directly on Facebook to ask about Lang parts, best way to reach him.
Check here under Tamiya Pz4, Jagdpanzer for a gearbox mount brace and metal elevation arm, last ditch.
https://www.axels-modellbau-shop.de/...s-accessories/
Have fun, John