Wiring Power Windows Without BCM

Hey guys and gals I was just wondering if anyone had any experiencing wiring power windows without a bcm. I have 2010 GMC Sierra with a big block Chevy in it and all factory motor wiring is gone so I want to strip the interior harness down to simply power windows and door locks. Does anyone have any experience bypassing the bcm completely Here is the factory window wiring diagram for my truck Off-road enthusiast

You'll need a 4-door power window switch kit. Drivers door switch is four switches, and then there is a single switch for each of the remaining door. SPAL has several styles to choose from. Some type of mating connector or pigtail to plug into the window motors would help installation. Do you want power locks also? The window switches are reversing type, which can be used to operate the door lock motors. You' need to find a switched power source for the windows, as the power supplied by the factory is constant. You could have the switched power trigger a relay using the factory constant power as a source.