I did my spoa for 40 dollars total, 20 per pair of spring perches from six states distributers, and a piece of concrete stake I had laying around I cut and lenthened my drag link adding gussets with some other scrap, welded my diffs, cut off the old perches and welded on new ones, if you swap the ubolts and plates driver side to pass and bend the bolts a little, u can use your stock shocks with the plates on top the distance doesn't change, also cut the brackets for the brake lines so they hang use zip ties for new brackets, I know this is not the best way, when I got my sami it was going to be a hunting rig only, and it worked great, also made some revolver shackles for free! still use them, as for the rest 8000 bucks later its all been changed but so have my zuks capabilitys!