I think the history of this vehicle is well know. Germans had attempted to capture American Shermans to deceive to allied troops.

I built this Ersatzs using a Dragon Panther, but a Tamiya Ausf G can be used too. I replace the cannon using one from Jordi Rubio made of aluminum, the tracks are from Italeri Panther, and of course plastic sheet and a lot of patience. To finishing the model I used Tamiya olive drab, and Tenier oils, blue, black etc.

If you are looking for references, I have several good articles from Steve Zaloga, Operation Griffon and others, I will be happy to share with you