You can get the green diamonds!!! www.treadwright.com. I just ordered a set from them for my wife's Trooper RS. Took less than 2 weeks turn around!!
Thats a bummer about the corrosion problems. I am still working on por15 the frame and welds. I am gonna duplicote the Aarms and other small parts. The POR15 is for the welds and frame rails.
Good luck with your other repairs, you should have let me know about the bumper bar, I have one sitting in my garage with no rust, could have saved you at 50 bucks or so...:)