Dedemac

There were three different quilts that we ended up with. This partial UFO comes from my husband’s grandmother. I am working on a GFG and will keep that one, I enjoy hand piecing. I gave one to my daughter to do, it was only folded squares.

But what should I do with this?

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I inherited this partial cathedral window quilt about 12 years ago. I have started to learn the art of quilting and after 2 years feel that I am ready to tackle this project, but need advice.

Most of it is machined zig zaged, there are 11 rows and the longest row has 21 panels in it. I have measured the sides and they are about 80 inches each. I would like to get it finished into something, so I can send it to his sister.
My first thought was to consider is half finished and continue on for a twin bed. I am now leaning more to finding a center seam ripping it out then rotating half to make a square wall quilt or a lap quilt for her. Would that make more sense? I would like to keep as much of their grandmothers work as possible, and put in as little new fabric as possible. It’s stitched so with a sharp seam ripper I could undo a few seams with very little damage.
FYI all of the points are there, I saw that the first picture one was flipped back and does not show. Here is a close up of one of the edges.

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I have a few other pictures if it would help in suggestions. Thanks for the help.