What is the total cost of these projects and how much are you typically charging for the requirements doc? I'm skeptical that most of the clients I work with w

What is the total cost of these projects and how much are you typically charging for the requirements doc? I'm skeptical that most of the clients I work with would go for something like this. Generally my projects are in the $7k-20k USD range (though with some clients the total spend is much greater with additional phases of work...) Also, what do you mean "you just don't guarantee timeline"? Why not?