full power door wiring

[Blazer Eagle]

So i have a 74 Blazer from Cali, no rust right? wrong the dumbass PO thought it would be fun to drive in salt water, well ive got it, i fixed the rocker but my doors were gone there were some huge holes, i have some pics of it somewhere, well anyways I went to pick n pull to get some new doors and i happened upon a 79 truck with full automatic doors

so as i have a 74, no power, anyone have any wiring diagrams? or maybe do you think i could special order from lmc just the wiring part of there power lock and window kit? Each door has three seta of wires going out, i believe one is connecting the two doors for the windows, one is connecting the dorrs for the locks and the other is power, but what do i know? so any help would be appreciated