Alternator/Volt Reg Wiring with LS Harness

[cebra]

Can I eliminate all of these wires (2 reds to alt/volt reg, 2 grounds, 1 white, 1 blue, 1 brown)....the brown wire (which I may not have as I have 5 gauge panel) and then pitch the voltage regulator or do I need any of these on my standalone harness?

From what I can tell my LS standalone harness feeds from a power wire off the starter and has an alternator plug on it so I wouldn't know where I would need to splice any of these wires into the standalone harness? Trying to finish off a few things before my swap gets started. Thanks.