That will definitely be impossible for a point blank ranger without godlike gear. Even then, they'd likely die quite a bit. Without point blank in a perfect world with flawless play and perfect game knowlege... possible? probably. That said, path of exile is not a perfect world.
When I make a build and it's close range, i usually aim for about 250% health or so. For a ranged build you can probably get away with about 200%. All of this depends on your gear, but i've been successful starting untwinked with these numbers.
The trick to a high damage build (because health is necessary in poe) is to find very efficient damage nodes (and very efficent health nodes). I made a couple of changes to your tree: New Passive Tree
I took out the excess dex nodes (you dont need any more than you get traveling the tree) and the points in the attack speed near the bottom. i put those into the same amount of attack speed in the starting area(for bows) and was able to get the really good health node thick skin on the bottom.
I also took out a couple of less efficient defensive nodes and placed them into health, which you really need more.
This build still needs a lot of work. You should get it to 100 points, as hard as that is, because max level is very hard to get to. This means you'll have to sacrifice some damage and get some health as well, though not too much more. I would also suggest getting nullification in the shadow starting area, itll really help with resistances.
I love making up new character builds, wish you the best of luck :-)