Brake mods??

It’s a completely stock slant 6 suspension and brakes. My plan is swap to big bolt pattern 4 wheel discs, front and rear sway bars, a 4 link, and at least a one inch torsion bars, aftermarket market lower and upper control arms etc. etc. So after reading the posts I will at least get a proportioning valve. I’m a commercial driver and have never so much as put a scratch on a commercial vehicle but there’s always some idiot out there that causes me to brake hard. Yeah...I know it’s eventually coming. LOL