Garry's Mod Creating a server

Yeah, you're probably not gonna have much luck in finding free developers. After all, these people studied hard and long to be skilled in development, and the most you'll find for free will be inexperienced young "Developers".
Eventually, a person would waste their time by working for nothing, essentially. If you do not have money to have a developer, you could try watching developing with lua tutorials and similiar videos, but it would take a long time to learn developing with lua and such.