dunno about shipping sorry but secret weapon miniatures has sacks of skulls - maybe see if someone like wayland games carries them.
Also Reaper has a some Egyptian stuff you might be able to use if you search their site:
http://www.reapermini.com/Miniatures/Egypt
Some of these are larger miniatures, like the Avatar of Sotar, which make great statues for 28mm games. Many of these are available in "Bones" a PVC plastic that makes the minis quite cheap, especially useful for terrain use.
I would write the sku down, and check to see if they have a local distributor for you, before ordering off the site, just because of shipping costs. If you google the sku/name you might be able to find a site that can ship with a better rate for you too, locally.