I prefer to think a little differently. For 2.5 gals, 3# of 2-row and 1/4# crystal plus cascade hops and Czech pilsner yeast could make an interesting Americanized version of a light lager. Right around 3.5%, it's could be a light clean lager with nice citrusy, floral notes. A lawnmower beer if you will. Not much of an investment either.