Hello everyone

So heres my build!
http://skyrimcalculator.com/#9416

I'll try to make sense of my build.
Stealth + Heavy armor?!
Yes, indeed. With muffled + boot enchants you can make yourself a sneaky snake that doesn't make a sound, and the "Conditioning" makes you able to move fast without penalty. Correct me if I'm wrong please about this!

Archery + Alchemy
I like poisoning arrows and shooting them from a dark corner. can anyone tell me, again, if this is viable? or they die too fast anyway from arrows in the long run?

Enchanting + Unarmed
I chose kitty for the x4 unarmed weapon damage, with heavy armor for the +damage from Fists of Steel, and took Enchanting to make enchants 100% more powerful + double enchants on gloves for unarmed damage, which tbh, should do INSANE damage if I'm right.

Now I have a couple of questions regarding late game, since I haven't gotten there yet.

Armor -
I heard dragon armor is the best armor. If so, Can I get it without getting smithing? Or do I have to get it? what armor kind is it? (Heavy, light?)

Illusion -
Does invisibility spell require me to spend any points in this tree? because thats the only one I'm interested in.

Sneak -
Tbh I feel like there are some wasted points here. Does deadly aim mean I do x6 damage or just x3 instead of x2? It annoys me that I need to get backstab to get this since who says I want to use daggers?.. so pointless.
Lightfoot and silent roll feel very VERY useless so I'm thinking, Is shadow warrior THAT GOOD that its worth x2 wasted perk points? I mean silence is great but I'm guessing I can live without it.

Well. I'd appreciate any advice from you guys :3
Tom.

I prefer light armor for my archer, as it has some cool perks and doesn't penalize movement speed. Heavy Armor is cool and all, but it's a bit overpowered in my opinion. Not worrying about damage makes fights less fun.

Sounds like the build a Blade assasain might have.

Sounds kinda fun, haha.