We ran the Old Man Emu stuff on a '95 4runner my wife had. It wasn't a flexy monster or anything but it rode excellent and wheeled way better than stock. I also ran the BJ spacers on a truck for a couple years and had no problems whatsoever. I made some new upper shock mounts for longer shocks, used low profile bump stops and ended up with a good 8" of travel. Quite an improvement over stock.
Try to find or make an idler arm gusset.
