The core tomes are, I think, at least 200 pages, mostly without overlap with the SRD, so those two combined would be maybe 850 pages? Plus all the other Tome content that people have written, that I would love to incorperate over time. So maybe 900 pages by the time it's all arranged? It's unlikely that you'd print that as a single book. However, a lot of those pages are things that could be cut from the main book, like the rules on wilderness exploration that people probably never use anyway. To get a version you'd want to print, I imagine that perhaps you'd cut a lot of stuff and re-arrange things so that what's really important is in a "player's handbook", and then a "player's companion" type book can be had as well for the extended things.
Anyway, I've begin work on "revising" the SuperTome, which means going through each chapter, sprucing it up a bit, and trying to make sure this time that there are complete enough rules in each chapter that you have to go check the SRD for missing sections very rarely. Right now I've only got an Introduction chapter, and next is Races, then Classes, and so on through the book.
Right now this is what my Table of Contents looks like:
1 Introduction 3
1.1 What Is This? . . . . . . . . . . . . . . . . 3
1.2 Things Needed To Play . . . . . . . . . . 3
1.3 A Note About Pronouns . . . . . . . . . . 3
1.4 The Basics . . . . . . . . . . . . . . . . . . 4
1.5 Ability Scores . . . . . . . . . . . . . . . . 4
1.6 Character Creation . . . . . . . . . . . . . 6
2 Races 7
2.1 Aasimar . . . . . . . . . . . . . . . . . . . 7
2.2 Drow . . . . . . . . . . . . . . . . . . . . . 7
2.3 Dwarf . . . . . . . . . . . . . . . . . . . . . 7
2.4 Elf . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Feytouched . . . . . . . . . . . . . . . . . 7
2.6 Gnome . . . . . . . . . . . . . . . . . . . . 7
2.7 Goblin . . . . . . . . . . . . . . . . . . . . 7
2.8 Half-elf . . . . . . . . . . . . . . . . . . . . 7
2.9 Halfling . . . . . . . . . . . . . . . . . . . 7
2.10 Half-orc . . . . . . . . . . . . . . . . . . . 8
2.11 Hobgoblin . . . . . . . . . . . . . . . . . . 8
2.12 Human . . . . . . . . . . . . . . . . . . . . 8
2.13 Kobold . . . . . . . . . . . . . . . . . . . . 8
2.14 Orc . . . . . . . . . . . . . . . . . . . . . . 8
2.15 Tiefling . . . . . . . . . . . . . . . . . . . . 8
3 Classes 9
4 Skills 10
5 Feats 11
6 Equipment 12
7 Background 13
8 Exploration 14
9 Combat 15
10 Magical Theory 16
11 Magic Items 17
12 Character Advancement 18
13 Prestige Classes 19
14 Star Sailing 20
15 Planeswalking 21
Appendices 22
A Spells 23
B Monsters 24
C Advancing Monsters 25
D NPC Classes 26
E The Open Game License 27
Glossary 30
List of Tables 31
Index 32