Thanks everyone,
This A7V model is definitely one of the most complicated i have undertaken.
This post is for the top driver and commander's castle.
The Ludwig kit parts only provide a basic shape for the castle, mostly inaccurate. Using the 1/35 Meng kit and instructions, i had to completely redo the exterior which is composed of bolted on additional armor. Here are details of the side panels, with the mechanism for opening the visors.

- A7V German WW1 tank 1/16 RC - Build
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Overall view of the castle.

- A7V German WW1 tank 1/16 RC - Build
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The two section extra armor is added on top of each sides. New visors are created too. This is time consuming due to all the various angles. To simplify the construction, all the visors have been glued in closed position.

- A7V German WW1 tank 1/16 RC - Build
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The sliding top commander's hatch reuses some of the Ludwig parts. The more accurate grill on the other side was built from scratch but i was able to reuse a section of the Ludwig top grills provided for the glacis. For some reason, i was given an extra sheet of these parts. Parts for the visors have been created in very thin plasticard. The dome on the middle top of the castle is created from a Lego part.

- A7V German WW1 tank 1/16 RC - Build
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- A7V German WW1 tank 1/16 RC - Build
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- A7V German WW1 tank 1/16 RC - Build
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The finished castle with about 400 rivets and bolt heads.

- A7V German WW1 tank 1/16 RC - Build
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- A7V German WW1 tank 1/16 RC - Build
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As there would be as many rivets inside the model as there are outside, i have decided not to create an interior of the model, at least for this build, maybe one day. There is too much effort and time required. I also need to keep my sanity because putting on rivets is really not fun.

- A7V German WW1 tank 1/16 RC - Build
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The finished castle as it looks on top of the model. I found a few more tiny rivets to put on but that will do for now.

- A7V German WW1 tank 1/16 RC - Build
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Next step, the top front and rear glacis.
Regards,
Louis