The shipping companies came though and all my suspension parts arrived last Thursday!
I went with Sonoran Steel full flex kit for the 5th gen Runner with KDSS. The GX are similar suspension wise just heavier.
I went with Sonoran Steel for a few reasons.
1st. One of two companies that would talk to my specific needs of spring rates and matched shock valving.
2nd. The unique rear axle pan hard/trac bar that they developed to allow full articulation of the rear axle without contact of the KDSS components.
3rd. Steve the owner helped me on my Taco suspension and with the purchase and suspension on my daughters third gen 4 Runner.
The front suspension is pretty standard Toyota with the exception of 700# constant load springs and Radflo resi shocks valved for this spring rate.
The rear suspension has the 850# OME constant load springs, Radflo remote resi shocks valved for the weight and 1" extended down travel that is afforded by the KDSS and the Pan Hard/trac bar. I also ordered the extended bump stops and lower links.
Working around the KDSS system was a learning experience but nothing I couldn't overcome.