Heya just a question,

if I install this private server, would this interfere the actual bdo game in my pc?

 

Just use 2 different game installations and you can play whichever server you like. Thats how I had it setup When I was still playing on official server.
Most of the time Gamezbd and official are not on the same game version. So I would Copy the bdo gamefolder from official to another place. Point gamez launcher to that one.

If you wanna use both from the same exact folder, thats not possible currently.