Sorry for the late reply Jerry.
Although not relevant to your model, here's a correction regarding Baron Donet's aircraft - spinner was blue and red stripes, not blue and white as I accidentally stated in post #173.
Wheel bays during WW2 were clear-lacquered alloy, with the rear wall only (the main spar) in zinc chromate. Insides of the gear doors were the same, although the reinforcing panel on the larger, wheel doors, if fitted, was often in yellow zinc chromate.