Rearranged

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Some of the volume of the machinery section should have been in the sensor city-scape in the nose.  So I moved the engineer and machine shop into the space that was opened up.

I don't have a way to note it in the drawing, but you can get out of the ship through the aft hatch if the landing gear is stowed.  You have to worm your way around the folded legs and there's an access panel bolted to the landing gear doors.  If you remembered to bring tools, you can remove the door and exit that way.

Edit to add the original LBB5 design.