That is a wide spectrum there. Be more specific to get a better, or any response. You aint getting anything safe to shoot for $400.
Not trying to be a smart Alec, but if you are in a situation that you need to draw a woods gun, it means your life is in imminent danger. I’d want the most reliable gun I could buy. Money would not be my driving force at that time.
What handguns are you comfortable and proficient with today? That’s where I would start at.