Default [Q] Qestion port modded System ui

Hey Guys,
Im a newbie with porting and modding. Id like to port a system ui mod for Xperia S (Lidroid for 4.1) to Xperia T (4.3).

I found pretty helpful how tos and stuff, but I do have some Questions.

For modding I need Framework-res.apk so as I want to port from XS to XT do I have to decompile the modded XS system ui with XS framework and the System UI from XT with XT framework and then implement the files from XS modded to stock XT system ui?

Or is there another way,... I really searched for it but couldnt find anything helpful

Thanks in advance