I went over one of the QJs I got from a store that went out of business, and it looks to be in pretty excellent shape. No signs of tampering (bleeds look correct, air bypass hasn't been plugged, etc).
However, I did find that the throttle plate has a crack on the "ear" of the primary throttle shaft, passenger side (fast idle cam).
What's the best way to fix this? I was thinking I could hit it with a cut-off wheel and fill it with some steel putty, or find someone who can tig-weld it. I would rebush it afterwards so air leaks won't be an issue.