Well, all the best to you giving the cruise server a go, but don't be too surprised if it gets attacked to the point that you lose interest!
Our machine is with OVH but the protection is only useful when it works, which it doesn't... most of the time.
You would probably need to start with creating layouts for each of the tracks, creation of junctions, parking areas, job spots, separating road lines, stop junctions lines, tyre stacks etc etc.
You will also need to be able to code locations and their functions into an InSim before it will be of any use.
Insim Programmers forum:
https://www.lfsforum.net/showthread.php?t=68564
... not sure what else to give you, but thats the basic building blocks (bar already having an available LFS server).