Ok, it looks like libicd_network_ipv4 is not part of the WiFi stack after all and shouldn't be replaced as part of any replacement of that stack (since its also used by the GPRS stuff).

So the items considered part of the WiFi stack are:
eapd
wlancond
libicd_network_eap.so
libicd_network_wlan.so
libicd_network_wps.so

wl1251-cal is also part of the stack but we dont need to worry about it from the perspective of gconf or dbus stuff.