Thanks for the thoughts. Sounds like it's pretty much unanimous, so I guess I'll recommend we re-visit the LHBS this morning. Yes, the amounts should have been 4.5-5% for both the aromatic and carapils. He got the pilsen and munich amounts right, and I think saw ~7 ounces of those other malts and multiplied by 10. We'd have to get something like ~40 additional pounds of pilsen malt and a couple pounds of munich to get in the right ballpark for my recipe.
Out of curiosity, what would happen if you tried to brew with those grains? Aromatic has enzymes for conversion, but the carapils doesn't, right? So would the huge amount of carapils be more of a problem? Would you end up with a beer on the sweeter, thicker side? Not an experiment to try for the wedding, unfortunately.