Thule has more to say, but square will be cheaper, louder, eat up more range, and doesn't support T-Slot attachments. Evo overhangs the mounting brackets while wingbar edge does not, which could make an aesthetic or practical difference to you, range and noise between these two are similar, but...
Automatically syncing with the front would not be worth the effort, in my opinion. To do so nonintrusively would require some kind of optical sensor and a more capable controller to identify and relay the color to match to your LED strip. For your time and money, just go with a prebuilt...
We're expecting FordPass and Keypad functionality even without a BCM update? Presumably we should also be able to run the routine to enable the button in sync if feeling impatient.
Woh, my experience has been pretty meh. They reach the right resolution eventually and have been reasonably honest, which I suppose puts them above most of the competition, but I haven't seen nearly that level of communication or turnaround there. What's your secret?