TexasRebel
I'm Awesome
For clearance reasons, I'd recommend no less than 6" with leaf springs. Should give you enough room to run a straight drag ling with crossover steering.
With coils, you don't NEED to run crossover and you don't need to worry about the drag link hitting the springs, so steering clearance isn't as big of an issue, though you still need to watch the frame if you're running a straight tie rod. However you can still run into issues elsewhere. Wouldn't want the axle hitting the frame, the diff housing hitting the pitman arm/drag link, etc.
If you're trying to keep it low with leafs, don't do the 52" rear springs. They push the axle forward, they give you more lift, and they're too soft in stock form.
For a budget setup like you're describing, for the front I'd recommend an 8 lug Dana 44 front, with 3-4" lift 47" springs. (GM 73-87 front, ~6-7" total lift) For the rear, a FF 10.5 14 bolt with factory 3/4 ton springs, a shackle flip, and HD shackles. 35-36" tires with 4.56s.
Is there a kit for the coil/link setup? I can do fab work, but I'd like to keep it to a minimum if at all possible. I can weld and fab though, just don't really want to for her truck.