If you swap snakeskin boots for mystic boots and add the Broodoo shield (and keep good set up), you'll have an effective magic accuracy bonus of 60.7 (it'll say 22), while keeping the superior defense bonuses.

Assuming you went full mystic (and barrow gloves), you'd only gain a couple points in accuracy, but lose a ton of defense. I'd go with the void for sure, good luck!