I like your quilt a lot. But, I think you should ask your DIL about it. You asked her to help choose the pattern and fabric. She did that and chose something that she felt would be great in her new farm house. So, I am sure her input would be great about whether or not she would like borders added and what dimension they should be. Personally, I am warming up to the idea of no borders on quilts with large blocks. But, ask her.