After watching Dronescape video above, the interior looks to be natural metal. Cockpit a dark green but the rest is aluminum. I'm not sure if that would be how they all came from the factory or just early models.
OK so the cockpit and forward seats and floor are black. Sides dull dark green (FS 34094) Aft (tail gunners is flat black. Rest is anodized aluminum. The aluminium should come out as a grey but I'm going with a flat aluminium.
I am useing the Keilx 3d set. I don't think I like it as much as the Eduard but it does as some missing color with the seat cushions.