Brad Allen has a lot of pictures to show what was origional. It looks like you have it all except for the control valve or ranco valve .the valves are around but most likely need to be repaired.Some folks use a cable with a aftermarket valve to control the flow through the heater.here are some of brads pictures.Also there is a site from a bolter Dave’s tech net and he has a lot of imformation to restore the heater.
