Yeah it's worth weighing up the components as you build the bike up because claimed weights aren't often 100% correct, especially with things like tyres. I've read all sorts of weights for Eagle Claws, some under 1k, some over. Also spokes aren't 50g. 32 262mm spokes are about 150g-200g, I know mods spokes are about 2/3rds of the weight but you're still talking about 250-300g for both wheels.
Oh and what 73g grips you running?! Try all foams weigh about 20.