The DPS trinkets/cloak/meta can make all the difference in the world, as you mentioned. When it came to the oozes, getting a lucky cloak proc just makes the fight a breeze in itself. As I mentioned in an earlier post with LK orbs, there is a sweet spot with AoE'ing with Swipe/Thrash without getting hit by melee. I like using UV to slow something and kite in a circle for this kind of thing, although my methods for soloing content tend to be a bit different than most.