Only because I love the style:
Pilsener/pale malt 250 kg
Munich malt 75 kg
CaraAroma/Shepherd's Delight/extra dark crystal or similar 17 kg
Pale crystal 17 kg
Roasted wheat malt 2 - 3 kg
Mash 66 deg
20 IBU Magnum and Saaz
Water chemistry !!!
Lager yeast to suit.
You'll have to scale it for the...