Please, please, please don't cut it up! If it's too big for your use, either finish it off - not tied, because with all hand sewing, it wil be too fragile -by hand or machine quilting. If you are not inclined to do that, sell the top somewhere and use the profits to buy fabric for your actual prayer quilts. When you think of the work it took for someone to hand pice all those little bits, I think it would be a crime to chop it up, and the folks who got the prayer quilts would have no idea of its beauty. Our church did the same sort of thing, (prayer quilts) only using two layers of fleece, with the prayers being said as knots were tied around the edges. As much a I like a quilt, those things were COZY!