Does anyone knows if V8 with Air Leveling Suspension has a different rear shocks to V6 (longer one)?
What are other aftermarket rear shocks are available for 4th Gen. 4Runner?
I'd appreciate if you can also post some pictures.

 

I don't know about stock height, but appropriate for around 2-3" of lift, you can use Bilstein's 5100 Tundra shocks, or OME (Old Man Emu, from ARB) shocks.

Let a few more peeps chime in though.

Here's what the Bilstein's look like: here

And the OME's: here

 

there are the Doetsch Tech shocks. you can get those through downey offroad.