You did a marvelous job with what you had to work with, but the recipients won't be looking at the quilting, they will be remembering Grandma Mary. I once quilted a quilt with similar issues. I was given log cabin blocks that were wonky, had various seam allowances, selvages included. I was so tempted to tear them apart and start over, but then it wouldn't have been the Mom's work anymore. I bit the bullet and cut them all to the smallest block, squaring them up the best I could. Some strips ended up being a 1/4", and some were wedge shaped, some basted by hand and other by machine but they were all square by the time I was finished. I sewed them together and quilted them to death with a tighter meander, to hold everything together and it was LOVED. They didn't care if seams didn't match, it was the only thing they had from their mom.