Well I have the Wood Elf Book, and waywatchers can deploy 12" away right out in the open! So for fun, here's a quote..
"Forest Stalkers
Clad in carefully woven raiments designed to help them vanish into the background, Waywatchers are almost impossible to spot. This means the enemy suffers and additional -1 to hit modifier when shooting at them. In addition, Waywatchers are able to sneak up extremly close to thier foes. Waywatchers are deployed at the same time as scouts, and can be placed in one of two ways. Either place them exactly like scouts, but with no minimum distance between them and the enemy, or place them in sight of the enemy (even in the open), but more then 12" away from them."
Thats the rule, word for word... Though I do not have an older version of the lizardmen book, so someone who does should compare the rules...