That would be correct! It was the hint that gave it away wasn't it?
To be honest: I thought of a DeHavilland as I first saw the picture, I read your hint a moment later as I scrolled down.
But I didn't know what Model it was because the cockpit looks a kind of "different". My first thought was a Twin Otter but that came out wrong. A little search brought me on the right track.

The best parts to identify were the throttles in the upper panel and especially the notch in the glare shield.
