Planning to combine forums
 

I am creating a second forum with a separate database for a second language now. In the future I plan to build a plugin for internationalization that will allow a single vB installation to provide for many languages. When I have completed that plugin I will need to import this second language forum into the original forum. I assume that the best way to do this would be with a modified version of ImpEx. Is this correct?

What actions can I take now that will keep the complexity of the future import to a minimum?

Do you think it is a good idea to begin the second forum with a copy of the existing database so that future overlap of usernames is minimized? If I do this then I need to delete all threads, which will be extremely server intensive, but so be it.

Is this the best way to go about this? Are there any other things I should consider?