Well I have a survival server with only about 3 people expected to play on it me and a friend along with a survival player. If you are looking at making multiple adventure maps, I can get multiverse bukkit plugin and we can make different world maps. And as for the price, if u are looking for me to keep the server up and running all the time, try about a few dollars a map. anyway i host my own server on a different computer from the one i play on so no worries. I can also whitelist for you. We can talk later maybe. My server has 10 slots no lag but 15 with minimal lag.