This does not help the rattling canvas aspect, but...
I did this course once because I had a car I thought couldn't tow a 13 footer (It could, and I ended up with a Burro
.. but I digress...)
I had two different tent trailers I was happy with at the time I had them. A Cub Kamparoo
under 300 lbs, and a Coleman Colorado, it was about 600lbs.
The Colorado was a 1/2 tent trailer, meaning it only had a bed on one side, but it had a huge dining area. It also had a soft top, which kept the weight
down. It folded out much like the Kamperoo and gave me lots more room. It was bare bones, you had to use your camp stove and cooler etc.
I enjoyed it.. but when I could get a 13, I sold it and moved on to hard sides.