I'd just bring a couple cases of miller light, it would be a lot easier!
I got this from mosher's book, except that I decreased the hops by 75%. I believe most of that macro stuff has 10 or below IBU's, so this is in that same ballpark but you may want to even drop the hops back even more.
72% pale dry extract (6.25lbs)
11% pale crystal malt (1.0lb)
17% corn sugar, added to the kettle (1.5lb)
ferment with a clean american ale or lager yeast
bottle with higher than normal corn sugar