Firstly, welcome, always nice to have a new builder join.
When I started, I was surprised that the book doesn't give the total quantity required.
Have a search on the forum, there are a few threads on the metal quantity, but here's a start:
http://www.haynes.co.uk/forums/showthread.php?t=6553
Oh, tell us a bit about your donor, engine & gearbox combination, we're always interested in what people are mashing together.
Hope my answer helps you, let me/us know if not.