Get a mc's width unaffected by rotation

Hi

Is there a way to retrieve a mc’s real width, because its value changes when it’s rotated…
I’ve thought of putting my mc into an empty parent clip and change that clip’s rotation instead of changing my mc’s… but I kinda don’t like the idea because in this project there will be 100+ mcs on the stage and I don’t want to double that number
I’ve also thought of putting the real width into a variable before the rotation but due to some other aspects it’s not the best choice
so, any idea?

Thanks