Paper Tiger minimum weight is 50kg for the assembled hulls. New boats weigh 46kg & add lead ballast, while the fleet at the 2009 nationals ranged to 56kg.
The rig, including mast, sail, boom, fittings is about 10kg.
Centreboards & rudders vary, top gear might be only 2kg for the lot: see http://www.teknologika.com/mothblog/category/foil-construction/
At the other extreme I have hardwood rudder boxes & foils which weigh about 10kg all up.