I recently found a very interesting mod called Metaworlds Mod. It has a lot of great feature and some are a step up from the archimedes ship mod. This could add some amazing creations to our worlds like giant floating cities that could move when ever you want or giant airships.I have seen and played this in multiplayer so it might not be overly hard to add the mod to the pack. I will leave the mod's website below as well as video of the mod being used in multiplayer with many other mods loaded along side it.
Mod website:
http://www.minecraftforum.net/topic/1948191-164-metaworlds-mod-v0985-fly-working-worlds-around-forgeinstaller/
Video of multiplayer use:
Part 1:
Part 2:
