Seems that this 'hatch' should be back on the corridor tube, not in the cockpit. For example, it opens a bit close to the saucer edge. That's to say nothing of the issues with all the 'control and instrumentation' in the console... Also, logically, if the cockpit pod also doubles as an escape pod, having a hatch there would tend to negate the integrity of the structure.
The airlock hatch on the top of the starboard docking tube should serve nicely for any access to the exterior of the ship without having another opening fabricated as shown in the artwork. Besides, an opening like that may temp Chewie to hang 'out the window'... oh, I'm bad... shades of Space Balls.
R/ Robert