I will not shoot your idea down, but I have to comment and say you did a really good job at it. I mean it would have probably taken a lot of time, but trust me when I say this, It just doesn't make any sense.
Its pretty much a Hunter without a pet. I mean one of the level 100 talen in WOD pretty much gives Hunters the ability to fight with their pets - something that alot of folks have been calling for for some time now. Its not cause we don't love our pets, its just that pets often times get bugged in raid encounters and are more of a nuisance. They are fun with question, but simply more of a hindrance. Take the Nefarion fight in BWD. Your pet always got bugged or didn't attack the boss when you jumped down.
And a Ranger with healing abilities. Please no thank you. That is a pretty stupid thought. We already have a class that uses magical arrows - Arcane Shot, Explosive Shot, Cobra Shot. This just wouldn't work or make any sense.
I rather see Demon Hunters any day.
2-a physical ranged counterpart to the DK class
3-a melee hunter
4-a healing physical ranged spec
5-a magical ranged counterpart to the hunter class
6-a ranged class with stealth abilities
idk tbh =P. maybe I went too far with this but I see no harm in it too...A class-based loot roll bonus? Please don't tell me you actually think this is practical.