hi please clear some questions I have. I have a SP101 revolver, it is plain stainless steel non blued. 1. Do I still need to oil the outside surface? can it still rust? 2. I've heard not to store guns in nylon bags inside safe as they sweat that true? should I get silica gel packs or not use the bags? 3. Where can I get a proper sized steel brush for the bore? 4. Any product available that I can shine that stainless frame to like new again? thanks everyone.