The only suggestion I have have is that in the future, you may have to spend the premium $$ for shipping (courier, etc). That way you get a tracking #, an internet site to check progress......that kind of thing. It may speed the process slighty, but at least you will have peace of mind that it is not lost, and know where the bottleneck is.
Often when I expect Ebay items from the stateside - they get hung up in customs. Customs is especially sensitive to parcels from known firearms sources. Just because it is a flintlock that doesn't need to be registered, doesn't mean they won't have a peek.
Sorry guys, but your parcels are moving at the speed of government.