When FICS was presented with this situation they use to have a "Mirror" where when someone told in channel 1, it would bounce or relay the message to the sister server. It was pretty interesting. When the sister server stopped getting logins the mirror disappeared. It was too bad that had to happen because I thought it was cool having both servers. More than likely the only way the servers would see each other is if there was packets shared between the two and the forums linked up. But considering the fact you probably won't have a big following, I am almost afraid it won't last long. You're fighting an up hill battle. I appreciate the idea and would probably log in.. But history has a indicator of this kind of issue. And history wasn't nice to EICS.
Good luck!
Good luck!