I am also going to Europe in Nov.
Be just bringing my 5Dmk3, 24-70mm mk1, 50mm 1.8 mk2, 10-22mm (converted) lens.
Not bringing zoom lens as i find that when i am on 40D, my 10-22mm is on for 80% of the time.
I think with Europe scenery, i think UWA is still b my no.1 choice lens.
my 2cent