I don't know if KBS coatings is related to the John deere stuff, all I know its some badazz stuff and does the job well. I spent about 4 days making my undercarriage as mint as I could. I enjoy doing most of the work that I can accomplish myself, and let the shop do the more challenging work...
Welcome from a fellow Long Islander, nice to see another 80 on the island. If you decide you want to lift it, I have a 2-3" King Springs lift with Ultima shocks ;) Good luck with the 80, these are impressive vehicles.
You'll want to sand down, and paint that frame real good too. I used KBS...