Actually there's way around some of that. I swap roms alot but I recently got a hold of a smart TV.
I figured you needed Allshare from Samsung. Google Play Store would not let me download Allshare because they said "it wasn't compatible." Really? With a Galaxy S3 from At&T?
I would just get the APK for some of it.
Google search to "Aptoide" May have to sign up.
You will have to install "aptoide" to get to the Allshare app.
I have the S3 i747 running CM 10.2 ROM.
Allshare now installed and runs fine.

May work for the rest of the apps you were concerned about. Worth a shot.