DJ, I can look at the W58 and see what it needs. I can give you an estimate for repair after that based on what I find is wrong with it. I prefer to drive the vehicle with the tranny in it before you remove it so that I can do a proper diagnosis and repair. Not everything in a transmisison gets replaced. I can discuss that with you after teardown and you're welcome to stop by and take a look at it so you get the idea of how involved it is. I also have a getrag apart to show you how much stronger it is.
About the powder coating. I know a guy in Mesquite that does my powercoating. He also does ceramic coating and you can contact him about details. His website is www.paulspowdercoating.com ph#(469)688-0837. Let him know that I sent you over.