I've had a hand in two such quilts. One was over a thousand pieces in 9 patches, all polyester. Her daughter-in-law asked me to help her tie it so it would be finished. I don't remember what she did with it, but it was very pretty.
The other was a quilt that my tenant's brother had used for years and really needed work. I took off the old back, found a new one, straightened the edges and put on a binding. Then my tenant, the sister-in-law and I tied it. It so resembled the one in the picture, it is eerie. It had the same rows of colors changing to other colors in the other rows. But it will last for many more years. Polyester never wears out.
I hope the one you worked on doesn't either.

Well done! I'm sure the quilt will now enjoy a long and happy life with people who appreciate it.

It's a wonderful feeling to save an old top and make someone else really happy, all at the same time. The top is beautiful, but I know it was a challenge. It's great that you were willing to take it on and have the ability to handle it. Some how that quilt top found the right people!