I have a kit for the FJ *but works for the 4runner* for sale. Bought the kit but I ended up going a different route.
$650 and I can deliver it you in the greater Phoenix area.
Part # PTR13-35140
Kit includes:
-2 Bilstein front shocks (6112's)
-2 Bilstein remote reservoir rear shocks (5160's)
-2 red front coil springs (1" taller than stock)