I made this for my brother in Ohio and it's similar to what you were looking at. I put the borders together - then added those to the main quilt middle. Worked out pretty well and didn't fight the weight of the quilt for all those narrow borders. I also found a photo on the internet to "copy" but I didn't have a particular size in mind. This one I took to a longarm quilter and was happy with it.
Deb in NC