A lot of the weight saving in Hunt Wheels are in the hub, not the rim, so whilst lighter, it’s not as noticeable.
Hunt XC wide (440g £79) / DTXM421 (465g £70) / Stans Arch (453g £65) ~ 900g a pair and ~£130-£160 All 25mm internal, all 28h, all 29er.
Hope Pro 4 hubs are ~480g and £250 per pair
Spokes will be 300-400g dependent on Revs, vs Comps, vs Champs or Sapim equivalent and will be between £30-£100 per set.
Nipples will be ~£2-£20 (brass vs sapim alloy polyax) and 30-80g
Total wheelset weight on Pro 4s will be 1.65 (Hunt rims, Rev Spokes, Polyax nipples) -1.9kg (DT Rims, Champ spokes, brass nips) with costs between £530 (1.65kg) and £400 (1.9kg) without a wheel build cost.