My .02, I wouldn't bother scaling it, half pound isn't much and I like a pale with a slightly sweeter character in it with the hops, but if you must, maybe cut the 60L in half and replace with 2 row. Better yet plug in into a program ( brewR, beersmith, etc) play with the numbers (2 row and 60L)until you get the Og, SRM, etc you are comfortable with. They say once you hit 60L, it has a bit of a raisiny note...but once again at that small amount I can't imagine an issue. Plan b...wait til you get the appropriate grain to match the recipe. I don't like plan b...but I like to play with recipes.