As someone making their own, it takes a ton of time that ER:LC does for them, like car models, GUI, Guns, Webhooks, things like that. I reality it's probably best to join these servers and just make one. Rather then making one yourself.
Hello from a very small ER:LC server ISRP, we take inspiration from such videos like these! We hope you good luck for your server, and hello from Wisconsin dells! (And Illinois)