Does it have to be online? I mean have you checked out local pet shops?
I got this one in a pet shop
It folds away and has a door on the front that is big enough for a person to get through, its also high enough to sit inside comfortably. It does have panels that fit on the top I had just taken them off in this pic for cleaning out the hutch inside
I totally wasn't expecting to find a run like this in a pet shop, I was actually on my way to buy wood to make a run when I stopped at the pet shop for pet food and saw this outside. So might be worth having a quick look just incase if you haven't already