RE: Too late to put up ladder stand???
You'll be fine.
Once while on Army leave I scouted. hammered and nailed a quick platform in a tree beside I 95 in Maryland..about 100yds from the interstate and killed a buck the next day. I saw 2
Last year I hung my Summit in Missouri at 8:30 PM ..Next day at 7:30 AM I shot my deer.
I think you will be fine. hey ..looking at your picture I believe you can get into a Summit safety harness. It comes free when ya buy a stand.
You can't go wrong man. I put my harness over my t-shirt. That saves a few inches. My other upper body clothes goes over the harness. Fits nicely .