I can't understand why they make simple subjects, complex ones. I mean, starting a new company is just about asking around and getting people to sign up on purchase agreements. Either people will do this voluntarily (signing the agreement) or the idea/project wasn't such a hit after all. A business plan can always come later on to entice investors (even though I, as an investor, seldom read them anyway others do see a value in it).

If the project does not sell itself, then a business plan will not do it either unless there is impressive names on the board of directors. If you are starting out as a new startup entrepreneur the chance of having Star members on your board of directors are slim to none. Therefor, skip the business plan and first focus on getting those purchase agreements signed. You will thank God you did.