Very minimal graphical environment

[Linux for blind general discussion]

Hi list,

I am forced to become a graphical environment user so I will begin my adventure with Orca.
I would like to have a very minimal installation of such environment. I want to have complete setup wich is quite enough for Orca and web browser such as Chromium or Firefox. Can you recommend me something?
I don't need desktops, file managers, mail clients, calendars and any other core software build into the graphical environment. Just to do a suitable installation to run Orca with internet browser. How to do it? Any recommendations, suggestions, opinions?

Greetings.
Artur Rutkowski