Last year I bought a take off wheelset from a 5.7. DT 350 hubs 32holes, supercomp spokes and 430 rims. Then I built the hubs with CX-Rays with Lightbicycle AM rims. 1420gr of strong light stiff.
If I were to keep the hubs and spokes I'd put Arch EX rims on it for a very good and more affordable set at 1575gr. I will not use a rim narrower than 21mm for XC and 23mm for
Trail so DT rims are not for me.