I went with the 33-185552 F4-BE5-6248-H5 Bilstein 5100 Offroad Shock with 255/70 valving, from Low Range Offroad. From the Mfg:
http://cart.bilsteinus.com/productsearch/33-185552Bilstein 5100 Series Shock Absorbers are high gas pressure monotube shocks designed specifically for lifted pickups, SUVs and Jeeps. The shocks feature a 46mm digressive piston with self-adjusting deflective disc valving. They offer super damping ability that makes them ideal for heavy hauling or occasional off-road use, while maintaining an exceptional street ride. (zinc-plated steel body, Triple-C-Technology coating )
Having not run the Fox shocks, these are good enough that I can't see the Fox being any better. These are $75 each, too, instead of $115 each for the Fox.
Here is what I did to mount them:
viewtopic.php?f=15&t=3438&start=40#p74681I'm also running stock rear springs with Airlift 1000 bags in them (pressure depends on load), and 3" of rear spacer.
As far as performance and mating with the Radflo, they fit very well together! It feels balanced front to rear, whether on pavement, or off-road, fast or slow. I really couldn't ask for a better setup, and I haven't been able to get them hot enough that I think I'd need a remote reservoir. (in fact, they've never been warmer than the frame next to them, to the touch)
Mike