Root is adding to the framework bad?

[mrast]

I have started this small project of porting the xperia plays native ps1 emulator to my other (previously bricked) esteem I bought from a guy outside my local metro store for $130!!
So anyway, I have a system.img that I extracted and I want to know if I add these file to my system if they would mess up my phone: System/app/PSpocket.apk or PlaystationPocket.apk

System/app/semcsuite.apk

System/etc/permissions/com.playstation.playstationcertified.xml

System/etc/permissions/com.sony.android.playstationcertified.xml

System/etc/permissions/com.sonyericsson.android.xperiaplaycertified.xml

System/framework/com.playstation.playstationcertified.jar

System/framework/playstationcertified.jar

System/framework/xperiaplaycertified.jar

System/usr/keylayout/keypad-game-zeus.kl

System/usr/keylayout/keypad-phone-zeus.kl

System/usr/keylayout/keypad-zeus.kl

Again, any and all help-suggestions-tutorials and what have you's
Would be greatly appreciated

 

[PlayfulGod]

everything listed should be ok except the keypad files, just adding may work, but def dont replace the existing ones.