I have one very big question - is this a Bukkit plugin you want re-created? If it is, then you've found your guy. I've been coding in java for over 2 years, and I've made hundreds of plugins both big and small for servers of all sizes. I would love to do this for you, 100% flawlessly. I Hope to hear from you soon. If this ISN'T a Bukkit plugin, then i am afraid i cannot help you, as i do not have the time right now to learn how to make single player mods.