Ranged will cover that, Since Positional is checked first, then Typed. But S/L with Black Scorpion Shield is easier to get to, with recipes helping cover stuff like E in the shield and general Ranged Defense.
Basically, you want as much of the D as you can handle. In every aspect that you can take it. More D, equals more chances of avoiding CC, now. AoE, Fire/Cold. That's tad harder to soft cap with Blasters. That's an loss you'll have to accept, so try stay out of AoE, PBAOE, Cones, etc.. if you can. THOUGH again, if you get your S/L/E defense up. You can avoid those AoEs, with S/L/E tied to them.
But also be aware, Defense is a fickle bitch. She total sloot for RNG God. So sometimes you can get a Cascade Defense Failure(CDF). When even though a mob only has 5% chance to hit you(not counting any buff they have). They all could roll that 5% & under all at once.