I agree with Phil and Primera man, if you are happy with resoult don't bother, but if it is not good enough for you try to stick to mentioned, every one of us has some diferent method, it is all try and mistake proces untill you get what you realy want. So if you have read all of the mentioned you shold have the right picture.
Edit: and by the way dryeing time is very complex thing and it is not so simple to say how many minutes. Thing is it should be dry enough before any polish, sand (colour), primer is not so delicate. So it should be minimum a week, depends on how much paint is on model.