can't comment on what you said because i'm out of my depth, you do seem to know what you are talking about.
You were right to sell, if you did restart you'd need de programming and a very fresh approach.Trying to repeat what you did first time is not what it's about.You'd more or less have to forget everything you think you know about the wc biz.Use new tech (ie computers), new biz model (forget compact,forget 4wks), be prepared to travel, and use proper marketing techniques.