This is a question about methodology for newcomers in the business of lauching firms.
I propose that we list all the things that must be done in order to present a good proposal for potential investors.
So, in my opinion :
What else ?
To the extent your raising money from Angels and early-stage VC's, I would add a few other critical factors -
Many of the answers to these questions are going to change almost immediately after you begin to attack the market with your strategy. That's ok. Investors are really evaluating you, your passion for your solution, your ability to execute, and your ability to analyze a situation. Your presentation - both what it says and the way you say it - will go along way towards answering these questions. And this has nothing to do with the economics of the deal your proposing.