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.
I will have to look into that gusset and the placement of it as well. I have either 2" (I think) BJ spacers on the front now, and the torsion bars are cranked like a pregnant dog.
I haven't done anything to the suspension since I have had it, everything done to it was by the last owner.
Gotta figure out how to get my tires to stop rubbing now, I have 35x12.5's and they rub when I'm at full lock. I cut the fender a good bit but it still rubs, maybe lowering the torsion bars a little will push the tires out some, and give me the little bit of clearance I need. Other than that, I will just havde to start cutting