I bought the rear springs, front and rear bars, front sway bar weld on brackets, 1.03" torsion bars from PST, and whatever I needed to rebuild the front suspension...hd tie rod ends and such.
That way, I don't have to tear stuff back apart later. I did not get the upper control arms...not yet, frame connectors, etc...
Made it far more affordable and made a big difference.
I did end up buying the shocks after I had installed everything up to that point. Wish I had gotten that 25% off them!
I bought from Matts Classic Chevelle online/ebay for a fair discount off list on most of it.