The altimeter was mounted on a wooden board in the original.
This wooden board itself was screwed on the left side in the front area of the cockpit.
The wooden board was made from a piece of waste plastic.
(there is a lot of Wingnut Wing waste plastic in the model)


After the wooden board was fixed in the cockpit it was painted with Gunze "Radome".
I did the wood grain with oil paint.


The scratch built altimeter has not yet been installed in the model.
This was actually done towards the end of the build so that it could not be damaged.

Here is the only really meaningful picture of the cockpit that I found on the web.
The altimeter is very prominent here.

Servus
Bertl