Simon L & Solid, I've added you to the build.
Solid I've seen a few of your other wood builds and they are amazing, it will be interesting to see this one in progress.
Ok, so its a turbo commander, I'm guessing one of those aero-commanders might be a good starting point if I happen across one "cheap" someday? The overall appearance looks pretty similar.
The crew of that King Air are probably still finding bits of seat cusion, something like that would have to change your outlook on things. When I worked on an ambulance we responded to a small plane crash, the pilot of a small twin engine came in without lowering the landing gear, his passengers were a pair of congressmen. The plane was probably a write off but luckily no one was hurt. Afterwards we were talking about it and we decided that fraction of a second where the pilot knew he should have felt the bump of the wheels on the runway and just before the bottom of the plane touched down must have been the longest in his life, filled with a Homer Simpson voice saying "d'oh the wheels" over and over. We felt pretty bad for the pilot, that can not be a career enhancer.