Spark inq - where to go from here?

Basically the title. Build below, possibly a few unreasonable things ticked in POB, but it's a mapper so flasks and charges are usually up. Struggling to find my next upgrades that aren't 20divs worth of reworking gear for 3% more damage. The next thing I was planning on was crafting another wand and buying an alt quality inspiration to account for the lost mana regen, but unless I craft a really gg wand it won't be that big of an upgrade. I feel like everything is fairly tight other than a few garbage affixes. Another potential upgrade is finding a megalomaniac with enduring composure along with good block nodes so I can save a couple of points and get another socket. Anything else I'm missing, or should I just start saving for the aura stacker/melding/nebulus swap? Currently have about 20 or 30divs, but can farm more fairly quickly now.

https://pobb.in/aW8bcyifPEk8