The thing with mastering is, there is no set steps or correct chains. You do what your ears tell you to do and you use the tools oppropriate for that situation.
Every situation (MIX) will need different things done to it. So listing steps and asking if its ok doesnt mean anything.
If your ears are telling you, that you need 3 limiters for that mix, then that mix shoudl be remixed or you need to re-evaluate what your doing
Cj