If you're looking for someone to do all the plugins for you then i'm afraid you won't learn how to run your own server. I can only recommend you...
Group manager alone doesn't have an 'auto-promote' feature so you will need to install a plugin that does this through console commands.
https://forums.bukkit.org/threads/setting-up-multiverse-spawns.102567/
Okay, now the reason people won't help you isn't because we can't be bothered, i'd be more than willing to help but you need to learn how to use...
Please provide groups.yml file with pastebin
Oh okay, I see. I don't know of anyway that is possible.. Sorry
You can deny the '*'
Please update post prefix to 'solved'
Duplicate post. Try GOOGLING issue before posting. (requires worldguard)...
Please change post prefix to 'Solved'
For future reference, put your configs through a YAML parser to make sure everything is fine and dandy http://yaml-online-parser.appspot.com/
I can't tell you how, but I can provide the resource for you to learn to do it yourself. http://dev.bukkit.org/bukkit-plugins/kit-essentials/
Or he could just do what he's saying he needs to do and disable the /sell command, go through the essentials config and disable it. You'll have to...
[ATTACH] Please google issue before posting, this was found easily. Source: http://wiki.sk89q.com/wiki/WorldGuard/Regions
Separate names with a comma.