Subject: Re: Road maps and directories
The main producer of maps in Italy is Touring Club Italiano. They have a website but I don't remember if it is multilingual and if they have online sales. You can buy their maps (sheet or atlas type) at any bookshop, highway gas station and some newsstand. For city streets directory everybody in Italy use the free maps attached to the phone directory book, so maybe your local hotel can lend you one, otherwise every shop as above sells detailed maps with directory of the city.

... a 15 week trip? You make me just a little envious :-)

Have fun