There were problems (rear springs) with Rusty's lift fitting pre 1974 FSJ's.....possibly these have been worked out now. I would do more investigation to be sure.
It's been my experience, that a custom set of springs (not re-arched) will run in the $1000 neighborhood....and that is just for springs only.
The Rusty's kit should include shocks and hardware.
Andy<br /><br />Iron Horse: 1987 GW 360/TF727/NP229/D44\'s F/R,TFI upgrade, 35x12.5 MTR\'s, Rhino grill, no wood, & Rusty\'s 6\" lift.<br />~Soon to have:<br />More goodies than I have money for.