PowerSteering?
There is another thread aout power steering here...
http://www.forabodiesonly.com/mopar/showthread.php?t=66690
From what I understand it wont work, from m experience with a body headers in general, manual steering is much better for clearance, if the TTI stuff says manual steering, I would plan on doing just that.
Fir the swap you have a few options, Manual box will bolt directly to the K member, and Pitman ARM, but the factory Power column is shorter by a inch or two. So find a column also, or use a adapter.
Firm Feel has them for sale that use the factory rag joint, or Flaming River makes a adapter that uses a small universal joint that gives a bit more clearance. They both cost...
Hope that helps.
JOE