NB and vmserver supporting remote X apps

I have an old NoteBook that is very old like 1.2Ghz CPU, 2GB Ram, 4200rpm HDD, etc.

MyDesktopKVM is a KVM guest running in my Desktop.

I want to do:

At NoteBook
-run a X capable environment

  • after logon, open a local terminal then do:
    ssh -Y user@MyDesktopKVM
    xterm &
    firefox &

What are the least resource hungry packages I can install at the NoteBook?
What is the minimum packages I need to install at the MyDesktopKVM?

What is this? I’m not sure as to what exactly you are referring to?

Post edited hope to clarify my question.

Thanks for the inputs.