What's a good starter suspension system that can be upgraded later?

only thing to add after welding the k member is go full poly bushing kit. the t bars can be swapped easily, the shocks can swap, sway bars can be added.

full front rebuild kit with idler and pit
reinforce k and control arms.

and other posts, anyone make a bushed adjustable strut rod yet? I would love to see a poly bushed strut rod to let the control arm move thru its motion easier...
DO NOT use poly lower control arm bushings... they WILL pound out of shape in short order. poly is good everywhere else but factory rubber in the lowers is best thing to use. And yes, I also know one or two things about making a mopar handle.....