I like the Newmen wheelset, a friend of mine has a set, really solid and light stuff.
To me, the limitation is the 12x142mm at the rear, both my MTBs have 12x142. While all superlight wheelsets are BOOST only (with 12x148mm at rear) including PI-Rope, and some of the lighest hubs don't offer 12x142mm anymore (e.g. DT180 is 12x148mm only).
So, my MY2017 Acros XC Carbon 29 wheelset also equipped with Duke Lucky Jack rims, with the old ones. These are extremely durable, survived ~15 long-distance races and 10.000+ kms. That's why I'm thinking in Duke rims again (or in the new Newmen carbon rims - oldschool inner width is not an issue to me;)).
So maybe Extralite hubs (15x110 BOOST at front + 12x142mm normal at rear) would be a good choice. Duke Lucky Jack Ultra SLS2 rims (not the 6TERS version), where rims are 275 grams (see here: https://r2-bike.com/DUKE-Rim-29-Lucky-J ... less-ready
), CX Ray spokes the weight should be somewhere around 1100 grams: https://r2-bike.com/Wheelset-29-XC-Extr ... arbon-Rims
My forks are BOOST already, 15x110mm. For the rear, Extralite with 12x142 will be still future-proof, because it has an adapter kit to 12x148 BOOST (however, it costs a fortune), if someday I would replace both my hardtail and fully frames: https://r2-bike.com/Extralite-Umruestki ... lspanner_3
I think I'm gonna wait until R2-Bike will come up with their new DT240EXP builds, 240 EXP hub will be offered in 142x12mm. Hopefully that'll cost ~200-300 EUR less for ~80-100 grams more - ehh, I have to go back to my good old keto diet again.