damn. if i have 150m, i would buy all the nat's set. than find a good 1200-1300 dps xbow with socket. that would be fun. 
1. no life on hit - Shadow Power Gloom would solve this easily.
2. super low resist - DH is not a tank to begin with. i would rather play a glass cannon DH with high damage + crits rather than a tank DH with high all resists but low damage.
3. no extra discipline - 30 disc is more than enough if u know how to manage it + we got preparation skill.
4. no bonus damage to skill (elemental arrow etc) on quiver which is the main reason to use quivers - irrelevant. what people look most at quiver is dex, asi, crits chance, discipline. the rest is bonus.

L2P. that's when kiting comes into play. wait for that prep/disc to comes off cooldown and start damaging the enemy back. i have watched a lot DH stream and i would say knowing how to fully utilize your skills + reaction + kiting is the most important aspect when playing a DH.

i have completed inferno. 

1. gloom have save me so many times when fighting reflect damage elites. waste extra skill? not at all.
2. tanker dh with low dps. for how long can u tank? 3-4 hit? but damage output would be low. to build a tanker dh with high all resists + decent damage will cost a lot. since i cant afford that, i rather play a glass cannon dh with high damage output.
3. i solo from normal > inferno act 4 with 30 disc.
4. like i mentioned earlier, the most important stats people are looking at quiver is DEX/IAS/CRITS CHANCE/MAX DISC..to have other stats is a bonus. don't u get it?