You're talking about two different things: ketosis (fat adaptation) or weight-loss. You can have weight-loss with and without ketosis, so why make yourself go into ketosis if you don't necessarily want to be fat-adapted.
Ask yourself: do you want to be fat-adapted? If so, go for the ketosis levels of carbs. If not (and you just want to lose weight without being in ketosis), then eat in the 50-100g range.
You are definitely over-complicating this.
Furthermore, on a side note, you seem to be treating this like a quick-fix diet. "...in 30 days am I supposed to stay in ketosis?" What's so significant about 30 days? Are you trying to detox or fit into a little black dress or something? I'm not sure I understand...