I like that colour too. That colour with everything else black and no logos,deep rims, would look super clean. I’ve seen a few different colours but you never know what’s going to be available. Specialized uk seem to pick out the most conservative ones... I saw the choices Thailand have and they had loads more than we get.
Regarding etap I don’t know to be honest. Historically shimano release new stuff loads more than sram but I know what you mean. You could always get a mix of uktrgra and dura ace. You won’t notice the weight difference I dont think but you might just prefer the look of one over the other. I like the duranace chain set a little more but that’s just me. You’d think it wouldn’t be a problem getting it under 7kg.
Nice choices to have!