Well I started on the hatch.I was really concerned about this part.Steve said Its not as difficult as you think and he was right!
Here are some pics
I Kreg drilled and glued the cross members (I really like this tool)
I used !x pine for the cross members
I used 1/8 scrap plywood to hold things in place
Than I removed the hatch and skinned the inside
Than I epoxy the inside skin
Well thank you for looking hope to start the electrical next!