Well have kitkat, believe me. If you do the same with the KitKat update for the GT-I9305 instead of the Note2 firmware it will be better. Wifi will work, and RIL most probably too after some little changes.
I will try my best to port the upcoming GT-I9305 KitKat update to the GT-I9305. If you could tell me what you have done in order to port the firmware, that would be awesome! Maybe we can team up and start porting as soon as the update is available?
BTW: Why havent you debloated the rom to shrink it a bit? Removing all unnessesary apps from /system/app and /priv-app could make it smaller than 1,5GB
Samsung Galaxy S Plus (GT-I9001) | CyanogenMod 11 AriesVE_DevCon-Experimental X | Experimental Kernels - In Pension
Google Nexus 4 | AOSP Android 4.3 JSS15J | Google-Kernel 3.4 - DEAD
Samsung Galaxy S3 (GT-I9300) | StockRom JSS15J.I9300XXUGNA5 | Boeffla-Kernel 5.2 - DEAD
Google Nexus 5 (LG D821) | AOSP Android 4.4.4 KTU84P KitKat | Google-Kernel 3.4