looks super nice!!
Couple of suggestions. You can save yourself a lot of $ on the disc brake swap by buying a '71/'72 rusty truck
and swaping the front suspension and the 5-lug rear as mentioned by C-30.
'73 - '87 Chevy front suspension will work too - and there are several articles/threads about the swap here on the board.
I wouldn't take the nose off it or anything, I'd drive it. If you take it apart it will sit in pieces for a long time. I'm sure lots of people will give you that advise.
Anyway, welcome and good luck with the new project.
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-'07 GMC Sierra K2500HD
-'66 C10 Suburban
-'68/'71 K20 Service Bed Project
-'69 Chevy C30 Mason Dump
-'33Ford P/U 396ChevyPowered