Correct way to stash and and restore recttransform

I have a need to stash and restore the recttransform of an object. I don't see an easy way to copy recttransforms so I believe I have to copy the arguments on their own as in:

Code (CSharp):

1. public void SetRectTransform(RectTransform aRectTranform)
2.     {
3.         if (aRectTranform == null)
4.             return;
5.  
6.         transform.GetComponent<RectTransform>().position = aRectTranform.position;
7.         transform.GetComponent<RectTransform>().anchoredPosition = aRectTranform.anchoredPosition;
8.         transform.GetComponent<RectTransform>().localScale = aRectTranform.localScale;
9.         transform.GetComponent<RectTransform>().rotation = aRectTranform.rotation;
10.         transform.GetComponent<RectTransform>().sizeDelta = aRectTranform.sizeDelta;
11.     }

the question then is. Which variable are the key variables? The ones that are not recalculated by the recttansform and must be copied over?