If you have the option of powder coating, do it. Don't even bother to ask. It will last a life time, being an indoor item that is rarely touched. You won't regret it unless you want another color. As far as what color to pick, I can't offer any advice you would want. I hate the "beige box" look. I used to paint my cases from the 80's until the early 2000's just to have any color other that some off white. Good luck with the powder coat and be sure too post pic's when it's complete.