I often see people split into two camps. On one hand those who almost ignore competitors in their business plan, because they do not want to think about the issue yet and feel so confident they have a great idea for the market regardless. But I recommend not being overconfident when it comes to competitors. They are still there for a reason, they are still around and in business for a reason, so view them with that in mind.
No doubt there would be a lot work to do to do a plan like this. You would need to figure out how to put it all together, do all the calculations, do a lot of what if's, etc.. And I'm sure one of the biggest things would be, would you actually take the time to do something like this or even have the time to do it? You could pay someone to do it but that would probably cost you a lot. Plus if you did that, most likely it would require a lot of back and forth work to get it just like you wanted it which would be even more expensive. But even then, would you spend the money to do it? There is a better way. If you would like to develop a nice plan like this for yourself and give yourself a good shot at making your life better, then find a planning software that does it all for you.