You can edit most anything in the game you want. Although it will run with no editing at all in the Database or source. The easiest way to get a server up quick if your new would be to use the installer from eqemu.sesmar.net.
If your feeling adventurous and want to have the experience of setting it up yourself check out this page.
http://www.eqemulator.net/wiki/wikka...CategoryServer
I wouldn't recommend the mysql 5 guide unless you have played with MySQL before and have a good understanding of it.
Good Luck!