As suggested by Dustin I disconnected the steering linkage and lowered the engine down. After doing this I immediately realized the benefits of doing so; it's just so much easier to work on the thing when it's resting the way it's supposed to, and when the cherry picker is out of the way. Thanks Dustin!
Here's the linkage disconnected from under the truck:
You can see how far the linkage dropped when I disconnected it. At this point, the linkage is hitting the insides of the radius arms (where it passes through them), and that's what's holding it up at that level.
I eyeballed the scenario for a long time, and I don't see a way to make the steering work with that pan. Even if I could press it down low enough to work, it would be too low--it could drag on things I run over in the future (or be smashed loose by something I run over). So it's definitely time for a different pan as we've already discussed!
I also took some measurements today.
From the bottom of the engine block to the crossmember it's about 6 1/2 ". So that disqualifies the Milodon 31130 (8" sump) right there! Also, the pan (and engine block) stick out about 3 1/2 " past the end of the crossmember, so any front sump pan will have its sump right over the crossmember--there's no way the front sump would sit down in front of the crossmember.
So this means there are two finalists for the pan! It's one of these two:
Milodon 30740:
Dooley Enterprises 9 Quart full sump pan:
Any opinions on which to choose from these two? If I want to avoid problems I should probably go with the Milodon, although I would have the added hassle of having a custom drain plug made in that. The Dooley, on the other hand, has a drain plug in a good location from the factory. The Dooley is also four or five times the price, but still within reason.
Thanks for all the superb advice!
Robroy