Interesting to see how the shifter for the t-case was connected; I'd expect that it'd be on the D/S, if he used a GM driveline. Must've custom-fabbed the linkage (and, unfortunately, the longer lever needed is not visually appealing, IMO). Would've looked better with an M/T, too. Seeing the slushbox gearshift, together with the 4wd shift boot, is a bit weird-looking, IMO.
I'm kinda with Moose on this one (although I can tolerate it better on the 2nd-gen, given how many were made over its lifespan). You want a truck, drive a truck. With this, you take the F-body's strength (performance / handling... or, at least what passed for it, back in the day), and totally negate it for something it'll never do as well as a truck. And it's not as useful as a truck, for towing / hauling. If he'd done this to a 1st-gen F-body, I'd have screamed or cried.
That said, I do enjoy seeing the various Motor Trend shows, where they do things like this all the time (Roadkill, etc., etc.) But on this... 'A' for the effort made in doing this, but I'd go with a 'C' for practicality / usefulness (outside of swingin' BDE... lol)