I made a tent like that for a client in the 70s. It was not as tall, had a tunnel entrance, and had no poles at all, it depended on a single suspension cord at the peak that you would have to hang from a horizontal cord between 2 trees. You could also pitch it under an overhanging log or the like. It was made of Goretex. The idea was that it was a bivi sac at the worst, and when possible, you could hang it. Walking poles would be a nice addition. I would like to see tunnels entrances make a come back - they are great in the snow and can't wear out.