I have 5 years experience writing Java, up to and including multiple games, libraries, utilitarian programs, and Minecraft mods, both serverside and clientside. I feel certain I can create the server system you require, with full login & registration capability, along with FTP, SQL, and master control panel, including live console I/O. I've written Minecraft managers that did the control panel section before; while they didn't look too great (I was building for myself, so just working was good enough), they worked well. Please feel free to contact me via chat for details.