Use hjsplit to join both the parts
1) Download & flash stock XWLA4 2.3.6 firmware via ODIN
2) Flash ODIN flashable tar for CWM 5 by Adam77Root LINK
3) Download NEOROM v3 from the above link, copy zip package to sdcard.
4) Boot into recovery, Go to mounts & storage, select mount /system.
5) Now, install zip from sdcard
6) Follow the onscreen instructions of AROMA installer.
7) Wipe cache, dalvik cache & Reboot.
NOTE: In 15 toggles MOD, flash light still doesn't work. Also, the Wi-fi Hotspot toggle will be hidden once you use QuickPanelSettings for changing toggles layout. It is so because QuickPanelSettings that is used in this ROM is made for 14 toggles. I am searching for an appropriate apk, till then avoid using QuickPanelSettings.apk
EDIT: see post #3 for updated QuickPanelSettings.apk
Though I have changed many colors in framework-res.apk, still there are some cases where there is black font on black button. Also, grey font on white background. I will search if there is a solution for it.
Thanks to leventccc & xlm13x
Post #2 for ROM screenshots & changelog:
Post #3 for MODs