Thanks for everyone's help/input. I've decided to get the suspension somewhat back to normal so I can start to diagnose from there. Who knows, it might drive fine after that. So I'm going to put the springs back in their original spot on top of the front axle, which will obviously level out the drag link. It looks like at least one of the front spring eyes is actually touching the mounting bolt, so I know those bushings are pretty much done.
Now I just need to relocate the shocks. The builder apparently cut the old shock mounts off the frame, so unless I can find some I'll have to do something else. Will the power steering shock mounts the vendors sell work with manual steering? Looks like the only modification is drilling a hole in the frame for one of the attaching bolts.
And to answer my own original question, Rare Parts has a cool online thingy-majigger where you can input the specs you need for a pitman arm. If they don't have one already made for a different application that would fit they can custom make one, even if it's just for one part.
