Hello there. I just received a near mint condition G1 Devestator. It arrived today and it is 100% complete, I couldn't be happier. However, he/they did arrive a little bit dirty. What's the best way to wash them? I keep hearing warm water and mild soap. What's the best soap to use? I'm also weary of water rusting the metal parts on him. No problem there as I can use our air-compressor to blow-dry him. Also, is there a way to polish up the metal bits? All paint is perfect, chrome is as perfect as can be, and all plastic is perfect. Just dirty and sticker wear.