Well, you can..... Like others said, find a donor harness and all the parts. But frankly, you really gotta ask if it is worth the effort ? The wiring is usually combined with the power windows, so you have to separate that. Then you have to have the holes in the door panels and the OEM switches.
An amazon kit I installed was about $25. Yes, it comes with the wireless remote,,,, BUT, you do not have to use it. It has a "master" side, where you just lock the driver side manually and the passenger side also locks. I love it. But I also love having the remote. I get in the house at night and wonder... did I lock the truck ? Doesn't matter. I just hit the remote and I am a happy truck owner.\
But, too, dont forget you need the door boots to do it right, and if your truck does not have them, you really have to pull the doors to install the boots properly. I dragged my feet on that aspect, but one day I was in a "NIKE" mood... "just do it".... And I am glad I did !