Success!!
The angles/measurements ended up just nuts on; literally a quarter inch to spare on the back. I'm going to wire in an internal outlet in the hood so I can make a small punch through the back to run a new cord and essentially 'power' the table and then plug the saw inside the hood itself. I really think this rig's gonna kick ass when all is said and done.
i'll probably get too clever by half and 'skin' the inside of the hood w/ some hardboard as well to get read of those rough spots on 1-sided ply that A) look like shit and B) will trap dust. It should be pretty easy to cut to fit and brad nail into place.