I need a Java Developer (Video game plugin project)

I need a developer to create a plugin for a video game (Minecraft) that will be hosted on a sever. It will include adding new races, classes, abilities, ranks, traits, ways of gaining XP/experience, etc. Possibly add things visually (amour sets, weapons, magic, animations, etc), but that can be done separately if you don't want to do design/art aspects as well. The full technical specifications have not yet been decided (hopefully you'll be able to discuss that), but you will be creating a Mod for a Minecraft server that allows players to pick predefined races (i.e Viking, Elf/Elven, Dwarf, Celt, etc) and classes within each race that can be leveled up by completing tasks and gaining experience. Each race and class will have their own traits , for instance elves will be naturally better with using bows (a higher chance of performing some affect, maybe) and will also be able to craft better bows. Dwarfs will have a higher chance of finding gold and diamonds when mining, and Vikings will have a better chance of dealing greater damage with an axe (etc). There will also be kingdoms and areas of claimed land, and ranks within each piece of land, such as King, Earl, Lord, Farmer, Warrior/Soldier, etc. Other players, kingdoms and armies will be able to come to kingdoms and invade, and if they stay within that piece of land for a certain time (probably within a fort's walls), while staying alive (similar to game modes such as king of the hill, domination, capture the area, etc) that area will then belong to the invading kingdom. The longer a kingdom has held a piece of land for, the higher defence bonus it will receive (i.e the longer amount of time it will take to capture). And pieces of land that have just recently been captured will be much easier to capture back, and therefore more difficult for the invaders. Within the armies themselves (if a kingdom chooses to create one), there will be a fairly simple hierarchical ranking system. The ranks mentioned earlier will have affect in commanding the armies (each soldier in the army will be a real player - and therefore probably won't consist of more than 10-20 players at one time). Different armies will also have different abilities and traits within battle, depending on each player's class and race. When a kingdom or piece of land is created/claimed, it will need managing. The leaders will be able to create armies and promote Generals at a cost, as well as setting taxes for residents to pay. If a king or leader is killed (even though they will respawn) there may be a chance to try and claim the throne. Lords and Earls (etc) inside a kingdom will also have the power to create smaller towns and villages inside that kingdom, paying taxes to the king.