Tappie,
Here's the site that Easy got those cockpit shots from:
The 109 Lair
Here's a link to some more shots of that same aircraft:
Finnish 109
BTW, if you're a stickler for details, those shots are of a Finnish 109 and there are detail differences in the cockpit between Finnish & German aircraft. Also, the bird at the USAFM (link provided by fightnjoe) is an Hispano-built aircraft that has been 'converted' back to look like a genuine Gustav. The cockpit in that aircraft (mostly the instrument panel) is not truly representative of a wartime 109. If you're not a stickler for details, then ignore what I just wrote...
Anyhoo, take a look around the 109 Lair, lotsa good stuff there.
Here's a couple shots of the G-6 at the NASM:
Here's the direct links:
001
002
I'll also dig out what I have on Marseille's Friedrichs...
Fade to Black...