After some research I think I would spend the extra $180 on the E5 Sport over the E5. besides the step up to Sora, those Praxis Alba cranks are actually pretty nice, I read a couple of reviews. And they have a 52/36 ring option I would want for the road. Assuming the Claris is using a BB-UN26, the total weight difference between the two crank setups is almost a full pound.
But naturally you have to buy a special Praxis bottom bracket tool. They always get your wallet somehow.