I went ahead and deleted everything. Ended up being about ~60 GB, since I only ever used standard compressed storage. It was weird going back through all those photos, but at least I can save them locally now.
Thank you! I didn't realize you could just do a Takeout. I started the process last night and hopefully will be able to transfer them soon. It was completed relatively quickly, so I wonder if it will really have everything...
Oh yes Edge of Tomorrow makes sense, my bad. I've seen both and mixed them up.