RP Restrict things toolguns ect plus looking for someone!

I run a dedicated RP server and im not the best at it to be honest so how do I restrict toolguns and entities and such? Im running ULX admin mod also if anyone wants to help run it with me you will get part of the donated money as-well as a ‘co - owner’ rank and $500,000 only looking for someone who knows what they are doing and I can trust, add me on skype or steam at rhigosrebel and we can discuss but otherwise I need to know how to block and restrict toolguns to superadmin -> above…