In reply to apg:
There is no exact equivalent of the OS in Italy, but obviously there are maps.
You can get them in my local co-op grocer. Not sure where in the UK though.
One serious word of advice, don't but Kompass maps which are really so bad as to be seriously misleading at times. The Tobacco maps are quite good, as are some of the recent additons like 4Land, who won some sort of international prize recently for map quality.
Same applies for via ferrata kit, you would be better to buy it here (in the Dolomites) where it costs much less and you have more choice.