Hello Larry,
Sound like a setup which has WORKED just right for lots of customers.
This may need ZD Managed outdoor AP(s) preffered ZF7762 or Indoor AP's with mesh ON and which model of AP to go for depends if cameras are inside the building or outside.
You would also need ZF7731 to backhaul camera traffic from location where meshing won't work back to central location
http://www.ruckuswireless.com/product...
Just get in touch with your Local Ruckus Wireless reseller, this shall be a cakewalk for them