Ignoring the 21mm last gen IW, I won't got either rim depths either.
I'm running 45mm front/rear, and during a winter run super strong cross wind almost knocked me off bike.
Unfortunately 45mm is already the shallowest one from Farsports for the current 24mm IW in-house branded wheels.
If there is the option, I'll go 24mm IW 35mm depth wheels instead, and its weight should be arounf 1200~1250g.