So I've been watching this thread for a buckton of time now, and all I see is you asking everything about, well, everything. Now server-related questions I can understand, however basic game-related questions, I have to wonder why? This latest question for example, what kind of engine would be most profitable ? Have you played through the game on single player before ? Do you know what each individual engine does ? Do you care to try out for yourself what would look best in an elven city ? Have you yourself an idea of how material gathering will go ?
In short, you yourself should have been able to answer, or at least figure out the answers to the question above and the like, keep in mind that people in your city might not be content with just mining and building, and will likely be more than happy to "figure out power" together with you, rather than you asking the forum here, and disregarding the community that might lie ahead.
Now I don't mean to discourage you at all, but once you are past the server-related questions, maybe it's best you work things out with your community..
