That was why I said that you would need to work with the server makers. MCServer has the potential to able to use more than one machine. Not distributing the world, but both the world generation and lighting could be spread onto different machines if you could get them to compile separately. It would however be a lot of work to separate them on to separate machines.
Also we could probably use the automatic teleportation technique used by some servers, but again that would be a new feature that would have to be added.
Also we could probably use the automatic teleportation technique used by some servers, but again that would be a new feature that would have to be added.