So:-
A target gravity of 1.045
About 30 IBU's (say Challenger for Bittering and East Kent Goldings for flavour and aroma for a more British feel; or, American/German hops if you're feeling the need to play)
A grist bill of 80% Pale Ale Malt, 15% Pils Malt, 5% wheat malt
Mashed at 66oC to 67oC...