[sc_rufctr]

Peter Zimmerman would like to write a book but he has to think about the economic viability of such a book before he can start this project.

The desire and will is not enough. At the end of the day his publishing company needs to make a profit by selling this book.

How many copies could they hope to sell?

This is a guess but if they sold over 300 copies world wide that would be almost a miracle considering the content of the book.
I'm not sure of the costs of producing such a book in such small numbers but it wouldn't be cheap.
Publishing anything like this is always risky and complicated.