Scale Overlay page prior to aligning

I'd love to see that the pages I am overlaying use a dynamic scale. For example, when the sheet that I am working on is a scale of 1:300, and I need to bring in another sheet that is 1:50, I would like the program to recognize the scale of both sheets, and "preset" the overlay page scale making the align process simpler. I could also see an option in the overlay dialogue that asks what scale the page is that you are bringing in......

Also, another bump for everything in this post and the posts people reference in there....