We use this rod mounted on the wall:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Then use these rings on the rod to hang the quilt:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Makes it easy to change quilts. We have 4 of them now.
To weigh your quilt you could always weigh yourself and then weigh yourself holding the quilt. The difference in weight is the weight of the quilt.
Jim