1. What skills are needed? You need to know at least something in lua and understand what is written there. Since installing some scripts, you need to know how to fix some of them. Because they can have bugs.
2. How much time will you spend on creating a server? If you are not experienced in this business, you will need about 1 month. By trial and error. And if you are already experienced in this matter. You will have a maximum of 1 week.
3. How much money will you spend? It already depends on 1: from hosting; 2 of whether you will download DOWNLOAD scripts, or you will BUY THEM. __________