Im 6'3 and with the drivers seat forward--i can slip in a 6" attachment piece that adds to the bed for an easy fit- no diagonal sleeping needed. 60"width fits two large thermarests side by side as im just above the wheel humps.
My goal with the storage was not to take up a ton of height/weight with large drawers (the girlfriend wants to be able to sit up inside if we decide to bunk in the cruiser.) I also wanted something on the lighter side build wise.
I havent weighed the pieces of the puzzle but id say im comfortably under 80lbs. I was able to use all the seat attachment holes and eliminate subflooring. Aluminum angle pieces run around the outer edge of openings like the door-rear side panels to sure up the 3/4birch ply on any spans over 18".
Im finishing off the front compartment holding the two batteries which are sitting where the old center console was.