Private offline servers?

Hello, I'm new to this community and I was wondering if I could get any help/or direction on learning how to make a server I can use offline to play mabinogi and dfo. Since I've entered college and got a job I can't keep up with the infinite hours it takes to train the newer skills on mabinogi. I've also played mabinogi for around 5 years before I quit and I'm not even close to endgame. My total level was about 5000 and if you've played a game for 5 years and your not close to end game it just gets annoying; which is why I was wanting to make a private server because I still love the game I'm just tired of being outclassed because you have to pay 10,000 dollars to get to the max level in a reasonable amount of time.

What resources and knowledge does it take to make an offline server, how I can make it like the actual game and update it to the current versions.