73 ac rebuild, need guidance

[ky-donzi]

I’m gathering parts and want to make sure I’m on the right track.

Background:
73 blazer basically I have no ac parts except the ductwork and Evap housing.

New parts ordered:
Evap
Accumulator
Line set
Pro6ten compressor
Binary hi/lo switch
134 blue orifice tube and adapter (to run in the larger Evap pipe from the early trucks)
Parallel flow condenser


The original schematic shows to engage the compressor clutch it has to be satisfied by low pressure switch and then in series by the thermal switch to pass current to the clutch coil.


So my main question is will I still wire my thermal coupling compressor cut out switch in series with the compressor clutch, or just use the hi/low binary switch for compressor cycling

Thanks