The tensioner has only 47k miles on it, I'm sure it will make it to 160k. But if I get a replacement and some free time, I might throw it in there.Like he/she ^ said. I also changed my CRUA belt with an IDparts kit, all of them were sourced separately/came in different boxes.
I know it's a pain, but I would indeed change that tensioner. ID should give you a new tensioner and single use bolts to finish the job properly.