Generally looks good to me.
If you're ok with a case that big and are worried about RAM clearance, you might consider getting one of those closed-loop liquid CPU coolers, where the bulk of it (the radiator) mounts to the back of your case and isn't anywhere near the RAM slots. Just a thought.
For a high end rig, 32GB is probably the new normal. (16GB minimum for new builds in general, IMO.)