Just an update. I set up the LAN port on my MSM710 controller as 192.168.0.1, which intimates that WLAN devices will use that same subnet and use that IP address as their gateway. I then set the Internet port up as 192.168.1.182, which is the same as the rest of my site LAN. The LAN's gateway is then set up as the default route. The MSM710 is only set up with one VSC so far, providing DHCP on the Client Tunnels only. This will give WLAN devices access to the Internet, as well as to the rest of the network via direct IP access, or if you have DNS or Host Entries set up.
That's it in it's simplest on a network with no VLANs or other routing. One con is that the APs each take an address from my existing DHCP server on the .1.x subnet. This can easily be overcome with the proper use of VLANs and routing, however. That'll probably be your next step with the network in any case.