Looking for insight on 4x4

[chev-obsession]

So I drove by a place today and saw a 4x4 chassis in a lay down yard. The guy says it’s a 71 GMC on a 69 Chevy 4x4 frame. The truck is complete and the previous owner kept up on registration so he could drive it, however the body is SHOT so I didn’t take pics of it. But… I don’t see it taking much to get the truck running.

So I’m really only interested in the running gear and frame. It looks pretty unmolested but I’m not a 4x4 expert and not very knowledgeable outside of the basics, so I’m looking for any input, insight, other things to look for or keep in mind, any help is appreciated!!!

Things I know:
Frame is over all straight and not rusted or cracked
Frame is straight over the rear axle
T case mount is bolted in and has an angle iron piece bolted to the frame to the T case
The front axle is drum brake with open knuckle (1970?)
The aluminum hubs around the red dials are cracked around every bolt
Missing rear shocks… Why?
Passenger side shock mount bent
I believe the T case is NP205?

Questions:
What would it take/cost to convert front axle to discs? Is it worth to covert over buying a disc brake axle?
Will the wheels work with discs?
Anything else I should look for?
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