I think your best bet is to use one of the sorghum/brown rice recipes that we've been coming up with in the forum rather than the kit. Something simple like
4 pounds brs
3 pounds sorghum
2 ounces of some light hops for 60
1 ounce for aroma (10 minutes or so)
some irish moss?
so4 or so5 yeast?
Actually, I think there was a gluten free blonde ale somewhere. Check Dkeshner's site, or Lcasanova, I know they have some of their recipes on their name links. I'm not doing too well with my taste reports on mine. I'm trying to figure out which bottles are which (sure I've sharpied the caps, but I don't know which number corresponds to which recipe right now thank goodness I don't have more than 10 so far.)