Carlin EZ replacement Blower Shield

Does anyone know how to get a replacement for the baffle that needs to be removed to pull the nozzle assembly. The Carlin residential oil training guide and EZ manual refer to it as a "blower Access Cover" I've also seen it referred to as the "blower Shield"

I don't see the part listed at any of the usual suppliers and the carling burner manual does not call it out. It just shows it attached to the burner housing.

I recently had to use the one I had on an old housing and want to replace it, for when some knucklehead leaves it out and the homeowner throws it away 😪