Yes the ruler doesn't lie, but no, I couldn't have measured those diagonals without a frame table.
What I did was to get the distance from the front edge of the frame rail to where the K-frame meets the frame rail equal on both sides, and as far back as possible. Then I'm your uncle.
I don't know how I managed to pry the engine/k-frame/transmission back about 1/8" but that was just a part of it.
In the video the engine's shoved to the passenger side, with about 3/8" of shims on the driver side. I should go back and measure the centerline again per that TTI sheet to see if I need to do anything there. Also might end up shuffling things around some due to the torsion bars, not sure right now though.