This update has been slow in the making.
First up, the bed had to come off:
Located safely in the toolbox is my water/methanol injection pump & tank, which also had to come out:
Bumper, taillights & associated wiring removed:
..and off the bed came!
I set it down on the back of the donor Superduty
...and the successfully scabbed it onto the frame!
I had to put a couple notches in & make a couple simple spacers, at which point i simply drilled new holes in the bed floor and bolted it down to the trucks frame! Whipped up a simple license plate bracket, and then sold the truck for $1k, which is almost half of what i originally bought it for!