LOL this is soo funny. They told me something similar. Apparently they were missing the cylinder head gasket which is a one time use item as well
To bad this was the only thing missing ( After 6 weeks!!)
When I finally took delivery of my new replacement H3, the dealer told me that just that day they had all the parts ready. Strange only that the truck is still in the garage.
A tip: You might wanna check whether the radiator was damaged during the disassembly of the engine. Mine was fully dented after the engine was open.