69 3/4 ton conversion questions

[Carlb]

I'm converting a 69 3/4 ton 2wd manual shift, manual steering 6cyl to a
1990 305ci 700r4 automatic from a doner 2wd 1500 for my wife. And it's long bed stepside if you need to know.

Here are my questions/thoughts:

a) I need a 700r4 crossmember right? The $50 CPP one works?

b) I saw a retrofit of the CPSTL linkage to the manual column to make it a column shift automatic: Cool or Crap?

c) The biggee - Converting to powersteering. It looks like most boxes are on the inside of frame rails. The 69 has the box on the outside. Which box do I buy. Calling parts stores has been frustrating at best....

Thanks for all your help....