Noahrexion is right.. You dont have to swap out the MC, but if you want to. You can swap it and the brake line you dont have to bend it. You will need to remove the plug from the second front brake line port on your MC and close with the first.
http://importnut.net/300zxbrakeswap.htm#MC Read this section you will know what i'm talking about. I did my both front and rear with Ebrake upgraded.