Help! Hood opened while driving. How can I fix my roof? Undent or replace it?

Would it be cheaper to replace the roof or fix the dent of my roof. Long story short, my upper tie bar is a mess and the hood latch began to break of it. The hood still closed but my guess is the last time I closed it, it didn't go all the way judging by how bent the tie bar was where the hood latch connects. My hood opened, smashed the windshield, dented the roof, and the hood is fucked to the joints. I want to fix the roof first because I can't put a new windshield on with it being dented.

Here are some pics: http://ift.tt/2bmic0r

Any advice would be greatly appreciated.

Help! Hood opened while driving. How can I fix my roof? Undent or replace it?