Wow that quilt is a real jaw dropper! It is gorgeous and you did a great job!
I so hear you on those borders. One of my current WIPS has PP border with long sawteeth like yours only mine are straight not curvy and it is a bed size so we are talking sawtooth border strips two at around 98" and 2 at around 76". Anyway you are right those long strips of saw teeth have gotten very monotonous and it seems to be taking forever even though it isn't. Just so many of the same thing over and over again. My border is almost done though!