The etched sheet metal fittings are painted, I had to make some fittings myself because I either lost them or used them elsewhere during the long time the model was lying around.
Anyway - with 0,10mm Evergreen plastic it works quite well.


I also took this opportunity to make the drain cock for the fuel tank.
These are two thin aluminum tubes (0.3 in 0.5mm outer diameter each) and a hand toggle made from etched parts.
The maintenance flap is an etched part - the opening for the fuel drain cock was made with a drill and file.


Servus
Bertl