Dd,
I find a lot of non-quilter’s just don’t get fabric selection. If I were you I’d just go with finding a burgendy or other dark red tone on tone to go with the reds or make it a red, white, & black quilt. Tell her you don’t have a tie dye to go with the colors & JoAnn’s only has a very limited selection of fabrics specifically good for quilting.
I come from a small area too so I’m a frequent visitor to Etsy & try to save up a little so I can buy fabric from a shop or 2 every couple of months. Watch their shipping prices. They vary highly but a lot of times they’ll discount the shipping prices depending on how much yardage you buy. In some shops it’s the same $4.50 to $6.50 to ship 1 yd as to 6 yards at once so make sure to ask, it varies highly shop to shop. Once I find a couple bits of yardage in one shop I then go through the whole shop to see if they might have other stuff I want to buy from them & combine shipping. You can put your fabric selections in your cart from different shops & in the end compare which is the best deal with the best fabrics for your project & money. It’s best to use the Etsy app to search too bc you can filter your results to just include fabrics & not things, like purses or clothes, made by that particular fabric. My fabric purchases often get to me in about 3 or maybe 4 days. Just an idea that I hope might help.