Door panel swap? 2003 Silverado 2500HD

So, I bought a 2003 Silverado 2500HD 4x4, but it has manual locks/windows, no cruise, etc.

I found out 2 days ago that I SHOULD have the wiring for cruise, once I chance the turn signal stick/switch, and if not, then it is 4 wires to solder and then I will have cruise.

What are the chances that I have the wiring in the door for power locks/windows? If not, how hard would it be to go to the salvage yard, get the wiring, and put it into my truck? Will it plug in? Obviously I need the door panels/switches as well, but that isnt a big deal.

How rare is the VERY DARK PEWTER interior color?

Thanks guys!

Get the harnesses from the fuseblock to the driver door and passenger door harness from the junctionblock behind the same location as the fuseblock, on the opposite side. I've never bought a nonpower truck so I don't know if it's plug and go. I didn't have much luck with 03+ dark pewter but found a lot from 99-02 trucks, both interchangeable but slightly different and require light modification.

Yeah, I figure I will just go to the salvage yard and look. At the very least, I will be able to get the harnesses, motors, solenoids, hardware, even if the interior color isnt the same. I will probably just learn it as I go with it.

Yup. You can always wire it to relays and switches. I'm sure that harness has a power and ground. It would be more involved but may be cheaper than buying the door panels and modules. But if you wanted it to work like factory then you gotta get the modules.

you'll have to buy the window motor assembly for power windows.