1. Copy the 3 folders (fonts, interface, WTF) into your World of Warcraft-folder.
2. Go into the WTF-folder you just moved.
3. Change the folder named ACCOUNTNAME to your accountname (sometimes this is a number, simply copy your accountname and rename).
4. Go into the newly name-changed account-folder and change the name of the REALMNAME folder to your realm.
5. Go into the newly name-changed realm-folder and change the name of the CHARACTERNAME folder to your characters name.
6. Settings are now copied, but we are not done yet. Some profiles need to be switched in-game.
7. Start Wow.
8. Make sure you load out of date addons and that you have the addons you want to use enabled.

These addons need their profiles manually changed:
Sexymap - /sexymap -> Tick "Use Global Profile" -> Accept
Aura Frames - /af -> Profiles -> Change Existing Profiles to "Default"

With BigWigs, the default profile is one without emphasized bars appearing in the middle of the screen, above the raidframes.
If you want them, you need to change the profile to either "20man", "25man" or "30man" depending on how many people are in your raid. (This simply moves the bar to be above the last group on grid2).
BigWigs - /bigwigs -> Profiles -> Change Existing Profiles to "20man", "25man" or "30man".

These addons need to be configured manually:
BetterExtraActionButton - /beab toggle -> Move the button where you want it (I got it to the left of raidframes, above my actionbar). /beab togglebg to remove the texture behind the button.
DejaCharacterStats - Open you characterpane -> Next to the Close (x) button topright, click the lock -> Choose what to display/hide.