There we go, now I can see it.
I personally like to build for both Ranged and AoE defense with Recharge as a secondary factor on my TAs. That being said, I was on that Maria team with you yesterday and you were surviving a lot better than I was (I was on the Illusion/Poison) but I also was not level 50. You've got a bunch of net recovery, so I'm kind of surprised you're still having endurance issues, though that's probably because of the high-recharge focus as well.
You might try copying the character over to the test server and see if Support Hybrid clears the end issue, then you don't have to worry about using salvage for something that might not fix it to begin with.
The big thing I see if your accuracy in Acid Arrow is nonexistent. If you don't plan on fighting higher than +1s, that's not a problem, but at +3 you only have a 73.3% chance to hit. Since that's your major source of -defense, it's worth investing in an accuracy slot. I'd probably take a slot out of Stamina to do that, as 4 slotting it is pretty overkill for the benefit you get.