Very simple from one point of view and not that simple from another.
Basically, I build FIRST (#1) 4WD 4Runner with 7" lift. Wow, how nice this is sounds.
What I did is: took drop bracket from Fabtech 6" lift with Fabtech spindles and droped the front diff. Then added Fabtech coilovers with custom upper mounts to gain 7" of lift. After all - rebuild the rear starting with control arms and finishing with a dri-shaft, ofcourse using new shocks and coils which were sourced from different suppliers.
This is also my daily driver, so it took me nearly 2 month to the point where I'm now and I still have some stuff to finish.