Hm, hefty price tag and unlikely to pop up used. I guess some previous-gen XTR or XT would be a good price-value ratio.
Also seems like Middleburns aren't too heavy and I like them visually.
The weight of the RS7-X-175 cranks are approximately 547g including all fittings
Cyber cranks are ~450g, I think?
XTR M970 might fit the mood board, but ~800g