Nice work but personally, the last thing on earth I would use on any LSX swap would be a factory GM takeout harness. The factory hecho en Mexico GM harnesses supplied by Delphi have plenty of wiring issues of their own (poor crimps, unprotected splices, etc ) even before molesting them. The 1999-2002 donor truck harnesses are getting old now where the wires are stiff and weather pack connectors are getting brittle from engine heat. If you live in the salt belt you can count on corrosion issues too. I wouldn’t touch one! A quality aftermarket harness from one of many suppliers would be the best $500 you could spend on a LSX swap.
But hey, if it works for you then all is good.
Great job on the video though! Maybe someday you guys can move to Nashville and be hosts on TRUCKS! or HorsePower TV or one of those other car shows.