Installation: Drag all content from zip/rar into the csgo directory. Add "sp load wcgo" to your server.cfg.
Configuration: Edit the config.py file to your preferences. Add custom heroes/items into their respective folders. Customize hero categories, levels, etc.
Credits: Manifest for him coding the effects, and supplying my test servers.
Extra: If you don't want people to use them then add an underscore (_) to the beginning of the Python file's name. The "models" dictionary supplied with this version auto-precaches everything. So just retrieving the item from the dictionary is enough.