Sourceforge the open source repository, have any of the devs thought about say an upload once or twice a week to the site, if u guys have a project started it might be a good source if the game is updated regulary u might find others in C++ might come forward to join in.
The other thing im going to do is to start a dwarf fortress forum thread for pulsar 4x ill link back to the main page here theres a lot of c++ programmers there that might be able to jump on board the aurora thread is already nearly 1000 pages long one of the most popular threads there.