Agree. It seems like folks think there could be a bolt on SAS "kit".
No such thing. Even if you have all the parts, you still need to cut, weld, grind, measure, cut again and weld some more. Finding the parts you need is the easy half.....
See Xterra kit above. The only welding is to the axle that you source yourself. Anything is possible. Doesn't mean it would be best or good.