When making a backup with some CWM versions, you have to manually enable the backing up of the preload partition. Without the preload data, a restored OS WILL NOT BOOT.
From the symptoms you describe, I believe this is the case here.
If I am right, you have 2 options.....
1) continue to run a custom ROM.
2) start from scratch, and flash a firmware via Odin.
If I am right, any attempts you make to restore your backup with whatever CWM kernel combo you find will continue to result in a non booting phone.....
Sent from my Markox/Gustavo_s powered KitKatted S2