Zero Rust is great, but I had poor luck with the Crystal Coat, so I wouldn't recommend it. I didn't use it on my frame, just the ZR black and that has worked very well. I used ChasisKote on my 47 jeep frame and I like it even better. Its very hard. I bought it at the Pate swap meet. Not sure where you get it now. I have also used ZR on smaller bits on the jeep.
