This is what I brewed in the end
13 lbs 3.6 oz Pale Malt, Maris Otter (3.0 SRM) Grain 1
2 lbs 3.3 oz Oats, Malted (1.0 SRM) Grain 2
11.3 oz Carafa III (525.0 SRM) Grain 3
10.2 oz Chocolate Malt (450.0 SRM) Grain 4
12.0 oz Roasted Barley (300.0 SRM) Grain 5
8.8 oz Special B Malt (180.0 SRM)...