Well, if you are flying Parkflyers and you are going to get a sim, I would say you should have pretty good success with the Butterfly. But, you keep asking if "it" will teach you to fly your trainer. Hmm, maybe. Experience is the thing you need. It sounds like you have some experience. And when you get your sim, you will be able to get much more experience. That should help prepare you for your Butterfly. Then the Butterfly and the simulator will help prepare you for your trainer. The steps you are planning are logical and this plan sounds good to me.
Some crack-ups are likely to happen from time to time. You may have experienced this with your Parkflyers and understand already. But you should eventually succeed.