Still going for the Barclay Perkins IBSt and I'm going to make some up regardless of the winner, which I'll also do. It's almost the same as the very last recipe in the Durden Park book. This is what they say for one (imperial) gallon:
Imperial Brown Stout (1856) Barclay Perkins.
OG 1107
This version remained unchanged for over 100 years
3lb 6oz Pale Malt; 11½ oz Amber Malt; 1lb 10 oz Brown Malt; 3½ oz Roast Barley; 4½ oz Goldings.
Mature for 18-24 months.
Thats an effin' lot of Goldings. Not surprised it needs two years maturation!
Might be better to get this one ready for Xmas 2021!