I got the email kick back and corrected it :-D I have been Whatsapping Leon. He's very responsive. I settled on the RD 13 with the carbon spokes and the ultralight hoops for $670 USD, will report back.
claimed 1200ish grams
Just paid, here's my load out:
YAR 40-03 Tubeless 40mm 21mm 28mm UD Disc brake 21/24H
RD28 Ceramic bearing
F12*100mm
R.12*142mm
Center lock
SHIMANO HG
CS-01 carbon spoke
1260+- 30g
Tubeless Valve, Tapes
US$670.00
Rd13 is not the designation for the hub?
And you write you have the rd28.
Do you have a link?
Ceramic bearings are beautiful and of course run nicer. But not noticeable and the maintenance susceptibility is higher.
Not to mention if a carbon spoke is broken. You do not get so easily replaced.
Therefore, I decide against carbon spokes.
I wish you in any case good trip and fun with the set!