I have done exactly what you described and it works great. I dont know the pn for the connectors. I just went to the salvage yard and yanked some off a wrecked truck. The same connectors are all over the engine bay. Just make sure you solder the resistors on rather than using but connectors and use some heat shrink to cover them.
2000 Silverado, RCSB, 2wd w/ a few mods.
Best 1/4 ET: 12.09@111.22 (old 5.3L H/C/N2O setup)
WRE 370 and Kenne Bell 2.8L installed and breaking trannys.
2001 Tahoe LT 4wd
Stock, daily driver and tow vehicle.