hello Jean
They are a bit pricey, but have you seen Oz Tents.
We have a 6’x 6′ Oz tent, we’ve had it for 4 years and it’s been great. You can get other sizes and various add-ons; and they are really easy to put up and take down and well made. We bought ours from Norwich Camping but I’ve no idea how much they cost now.
You can see videos on YouTube.
Hope this helps
Nozzi