As a long time scouter and kilt wearer I would suggest you wear the Scout Pants for your Court of Honor. The Kilt is recognized as an optional part of the uniform in Scotland not in the United States. While I applaud your wish to wear a kilt with your uniform and for most occaisions I would say go for it. But a Eagle Court of Honor is a special occaision and not only is it an honor for the new eagle scout it is a time when younger scouts see an example of Scouting at its best. Remember uniforming is one of the methods of scouting.