I love your idea for a bunk bed and highly considered it in my hawk with a rollover couch.
But I switched campers to better accommodate all of us - to the Grandby.
We have a family of 6 - 4 adults and 2 kids.
We can sleep all 6 of us in our setup. Grandby front dinette with a king slide.
4 kids easily sleep on the king bed up top and adults sleep on the full size bed below.
This works great and something to consider for your camper.
You could even keep the short bed truck with the tail gate down if you wanted to make it work.
Edited by DrJ, 14 March 2016 - 02:23 PM.