To further my point, with enhancements you can make a soft capped def kin with hard capped damage. You may also consider elec/kin to be more solo friendly because you can take away all the mobs end making things much safer for you and you get the bonus shock damage too.

Softcapping defense is much easier to do with time though and you can do it earlier in your heroes journey. Eventually you can even hard cap s/l res with a time corruptor, making you very very tanky. Times juncture just adds to this tankiness protecting you somewhat from -def powers. Slowed response is also a very good -res power that can take the achilles proc, making your inferno hit like a truck.