Can you still tour fort on your own without tour guide? Tried to buy tickets and none available for today , September 17th?

Yes, but you have to pay, $15.00, too much for my interest.

Yes, you can but entrace tickets are necessary regardless of tour guide.

There is entrance fee you have to pay first, after that its up to you. You can look around your self or join a tour.

Yes.

Of course you can