K20 - big hub axle swap. Disk brakes help

[Krex]

Ok everyone I hope some one out there can help.

I have a big hub external spline Dana 44 on my 1970 k20. It also is open knuckle. I checked the axle code to confirm its oem to the year with the 4.10s anyway.

I also have a 76 Dana 44 from a 76 k20 internal spline hub open knuckle with 4.10. Also this was a auto locking front axle.

So the plan was to swap the 76 under my 70 and bolt everything up so that I could have disk brakes. But first I wanted to open up the 76 check replace ball joints etc and put in manual internal locking hubs.

Here is the PROBLEM. During disassembling I found that my small hub spindles were shot and would need replacing... So I looked around for new spindles. Found out very quickly that everything is out of my price range at the moment because I need to buy the internal locking hubs too. I only want new btw if I were to buy.

So the QUESTION is... For disk brakes what do I need for a the big hub big spindle external locking hub Dana 44 or do I have all the parts already. Can someone make me a list?

What I have:

76 Dana 44
76 rotors
76 brake calipers
76 rotor backing plate.
76 small hubs
76 small spindles (bad cannot use)
70 Dana 44
70 drums
70 brake shoes
70 drums backing plate
70 big hubs
70 big spindles
70 external locking hubs external premium spicer
72 3/4 ton brake booster
72 3/4 ton master cyclinder
72 3/4 ton prop valve

Again please provide a list for a big hub Dana 44 disk setup parts. Thank you