coil overs

I was going to lower my truck but decided on a lift instead, already have some lowered toys. Anyway, I see that there are many different options ranging from spacers to coil overs to full kits that included cross members. I really only want about 4 inches of lift to clear 35" tires, can't do 37"...

I have a ‘19 Big Horn 1500 with the off road package. I remember reading somewhere that the 1 inch factory lift is achieved by a longer strut/coil assembly. I’ll be adding 250+ pounds with a steel bumper and winch. I’d like to compensate for the added weight with a heavier duty front spring...