Maybe off topic: ArchLinux from Scratch to a desktop

[Cleverson Casarin Uliana]

Dear,

About two years ago I successfully set up ArchLinux from the begining 
til having Gnome with Orca enabled. I did it just following Chris 
Brannon's tips and the official Arch guides such as those about 
installing the base system, setting up Xorg and finally Gnome.

I'd like to know whether this process remains straightforward to do, 
i.e., can I still install everything and Run Orca at the End, without 
any sighted assistance?

In case someone has set up Unity under Arch, I'm also interested to know 
if it's easy.

Thanks,
Cleverson