Rogue,
 On my 250, I left my shocks on when I did this. Your obviously going to get more extreme measurements with no shocks as it will allow the suspension to cycle further than normal.

 I set the toe to zero at full suspension droop (shock fully extended)
 then I measured the toe at 1/2 suspension compression and wrote it down
 then I measured the toe at full suspension compression

 From what I was told, the minimum toe-in should be 1/16" at the "Worst" part of the curve.
This is under the assumption you have "toe-out" bump steer in the center as most LT's do and from your illustration, it looks like you do.

 That measuring process is what I used to check my progress when I was adjusting the height of the ends of my tie rods until I limited the amount of toe-in/toe-out when I cycled the suspension through it's range.
The key is to take your time.
Once I had it down to the minimal amount, I realigned to a 1/4" toe-in.

By the way, it still has some bump steer, but not nearly as bad as it was and with the camber mod, it has helped a lot.
Hope this helps.