I paid back the money to an old internet friend that she had lent me over the years. Her delightful response?
In the last shot, on the far right, is the cat tree I bought Chalie recently. As I was doing so, my friend was doing the same. So Charlie ended up with two new cat trees. Yay. The one on the right is on a table and is only four feet tall. It came assembled with everything except the top perch had to be attached.
The one from my friend took almost four hours to assemble (1 hour work, 3 hours swearing). It's seven feet tall and Charlie can easily reach the ceiling from the top perch. He and I are very happy with this gift. Thank you, Ms. N.