Really like this, may want to tackle something similar. Is this the Italaeri kit with the Einheits cab replaced with one from a standard Blitz?
Lead Warrior makes a beautifully done resin conversion to build this variant that will work with all the currently available Blitz model kits both old and new.
(Why has no one offered a 4x4 version of the Blitz in plastic???)
This tanker was one of the vehicles used to service/fuel the V-2 rocket:
Here seen as a 4x4 fire truck. ~ This kit is actually available as a 2x4 from Italeri in 1/24th scale.
My Opel Blitz Photo Reference/Walk-Around as seen in the Archives:
https://archive.armorama.com/forums/218643/index.htm
Photo by the Author
(Patton Museum Reenactment Event)