I think there are a couple of mods that you can use for free. Do a search in the search bar select all mods in the drop down list that will narrow it down. To get you going thoguh (I assume you will use 3.7.x so this mod has everything you need it was written by
Psionic Vision and is located
Here
--------------- Added [DATE]1225822125[/DATE] at [TIME]1225822125[/TIME] ---------------
EDIT:- This thread will show you what to do but it involves some editing of files so back them up or try it on a test server first.
https://vborg.vbsupport.ru/showthread.php?t=82441
Connor