Can you rough it here? Like set up tent and camp fire?

You would have to use a campsite if you're wanting a campfire. No campfires allowed when you do remote camping because of wildfire risk. As far as the remote camping, you would have to call and ask specifically what the details are. Here is a link to the fees so you can get an idea how this place operates https://www.nps.gov/seki/planyourvisit/basicinfo.htm

Yes you can.