The molds used are:
The Wizards Tower - #50 (walls, dungeon and keep)
The Dragons Inn - #51 (Windows an doors)
The Round Tower - #52 (Towers)
Cobblestone - #210 (Courtyard)
The amount of bricks, ok it is about 2500 overall, the keep is about 900, each of the three towers are about 300, an then about 500 over the walls an the cobblestone, with a few decorations here an there. All the bricks are straight from the molds, no sanding or shaping, or special things done to them, if you want to build this castle, just make bricks and go.