72 Duster Resurrection

I think I have most of my parts picked out and ready to order but I have a question:

moparmat2000 said

You will need the A body disc brake hoses from 74 to 76, disc brake proportioning valve for A body from 74 to 76

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So all drum brake cars did not have proportioning valves and now that I am putting disk brakes in the front I will need a prop valve, correct?

Any thoughts on which one? Standard places like rock auto and autozone dont have them.

I found this thread: Which proportioning valve should I use??

which discusses these two parts from summit:

Classic Performance Brake Proportioning Valves PV-2

Wilwood Brake Proportioning Valves 260-11179

Anyone have thoughts? Just for reference, Im putting 1974 front disk brakes in a 1972 all drum car.