I can't say specifically for those options, for your truck, but in general, the answer is no. While you can buy the parts, install them, wire them up, so everything is installed, the truck isn't programmed to respond to those buttons, so it doesn't. And GM doesn't allow/sell updated programming to make them work. For some specific things, such as side mirrors and occasionaly a few other things, GM will provide new programming to make them work, but SWC is not one of those things (at least that I'm aware of).
You really want to buy the truck, with the options you want already built into the truck.