Convert 4x4 to 2 wheel drive

[65n70chevys]

First things first

I know this goes against everything 4x4 related and almost nobody agrees with it. However I have 2 K5 blazers a 74 and a 75. I would like to have 1 4x4 and 1 to be 2 wheel drive. Before I get all kinds of 'use the search button", I have, and have read hundreds of post. I still seem to be running into problems. What I am trying to figure out is the easiest way to put 2 wheel drive front suspension components under my blazer. I don't expect this to be easy by no means and i'm not rich, so backyard build is what I got. I know this site loves picture so I have added a few so you can see what I'm working with, and whatever happens I will continue the post with as many as I can get as I go through the conversion

What I do know (I think)
-Front crossmember will fit both 2 and 4 wheel drive frames?????
-Conversion requires new transmission, crossmember, rear springs and shackles from a 2 wheel drive
-Requires different steering box
-Requires different brake line routing
-Im sure there is waaaaaaaay more to this that I just don't know

Any help would be appreciated

65n70chevys