brake parts for a 10 year old mcgaughy's drop spindle 6 bolt disc swap

[littlevictories]

My pop did the swap some years back and I'm trying to rustle up parts for a freshen-up.

I'm told they (mcgaughy's) use the 79-86 pads, rotors, calipers, and hoses---is this right?

The truck also has a manual big block corvette master cylinder from the same company. Any idea what year parts i need to order?

Basically the truck sat for a couple years and our climate here in the PNW kills dot 3 if it sits. Rust water doesn't work so great as a hydraulic fluid.

Any help is appreciated.