Foundry seem to be covering ranges they have made already by the Perry's withe new sculpts by lesser know sculptors. You just have to look at there new Nappy Imperial Guard.
In regards to all the new interest in the Zulu range I have no idea why everyone wants to own Zulu war ranges. I hope that I can do justice to the enthusiasm of all the guys and gals at Empress. I know that this will be the range to watch.
Know a Legends of the Old west supplement for the Zulu Wars could work.
Paul is right LOTR with the Alamo massed fighting rules would work a treat and be pretty easy to do too
Paul
Rick Priestly did a conversion many moons ago for WAB on the Zulu wars, a bsic set of stats with weapons.