Its funny i have even see hard core mashers eat there word about dried yeast after trying tasting a beer done with notingham.
Bigd go 6.5 kg ale malt all up for a 25litre brew at og 1.065 or there abouts should be around 7.5 kg all up
which your recipe will be if you add yet another kg of base malt.
also don't forgot double the hops on the end.
jayse