600m2 Granite (http://tanbrown.org) Slabs (http://www.VerdeUbatuba.com) - Melbourne or Sydney

AUSTRALIA -- Melbourne - Sydney --  I am wanting to locate approx. 600m2 of 20mm Granite (http://tanbrown.org) Slabs (http://www.VerdeUbatuba.com) suitable for flooring/paving.  The finished colour needs to be a very even 'battleship grey' - therefore a fine grain, plain black, Stone (http://g603.net) would be best.  The finished sizes of the panels will be large (eg1200x1200, 900x1200, 1600x1200).  There will also be a requirement for a onsiderable quantity of matching step treads with bullnose edging. Samples would be required...January 26