Storage Space Requirements for Modded EAW?

Hi, I just bought the gold pack from steam and after getting to know vanilla for the first time, I'd like to start modding it with the bigger, more advanced mods. on steam it says there needs to be 3.61 GB to install, but after i use mods, how much more space will it take up? (I am a little strapped for space on my poor gaming laptop)

Thank you!