This is based on (FIFA points for a win) / (actual effort from Elo rating).
Armenia still available but I guess it's too late now to schedule a friendly.
Of these 20 teams, only 8 will play a match against a higher ranked team (Elo home advantage included):
France - away vs. England
Portugal - home vs. Spain
Lithuania - away vs. Hungary
Serbia - away vs. Bulgaria
Gabon - neutral venue vs. Senegal
Norway - away vs. Republic of Ireland
Belarus - away vs. Oman