I've heard others having issues flashing in older versions of recoveries, so it'd be best to upgrade to the newest CWM.
Credit goes to steven676 for the proper tuna fixes to get WiFi working nicely, as well as other fixes. https://github.com/steven676/android..._samsung_tuna/
Without further ado...
GAPPS were taken from http://forum.xda-developers.com/show....php?t=2507846.
Also, credit to CM for their proprietary repos.