The free space depends on the sim - It changes on a case by case basis.
My sim looked nice but dame was not expecting it to take up so much space.
Good Luck
So, the system didn't crash this time but, it would take close to 24hrs to finish cashing the 2000-frame animation. I think I'm gonna have to quit on n-cloth and just skin the cloth to the character because I don't think I can wait 24hrs everytime I make a troubleshoot of any part of the cloth.