OP,
Looking at your system, Transparent is the brand you should be looking at. I have virtually all Transparent Ultra Gen 6 on my system. I have upgraded from various previous generations and models.
I believe that Gen 5 to Gen 6 was a very substantial upgrade. One that is compelling to choose. So, if I were to do it over again, I would choose Gen 6 and then go as high as possible on the product line. So, I was able to go for Ultra.
ARC and transparent are a fantastic combo… well, unless you can afford Nordost Odin 2… they are way better). I experimented with half a dozen other brands, Transparent is perfect. The higher level the better.