1974 Boler renovation started today

[Tom in Meigs Ohio]

Hello, I finally got some free time to begin my reno today. Removed all the cabinet doors and Coleman stove(rusting out). The ensolite is not in too bad of condition so I'm going to clean it(is TSP the best cleaner for this?) and then caulk and repair the original. What is the best way to re-attach any areas tha are sagging down(adhesive, etc?). I'll post some pictures soon. Thanks for any help you can give.....