The Dragonic Power line as some good skills to help with durability. Razor Spikes and Dragon Blood are my favorites so far, and Inhale looks like it will be nice once I unlock it. I would get the Fiery Grip skill, to pull enemies towards you. It will allow you get get a few hits on an enemy before his friends show up to the fight. The ultimate Dragonknight Standard does some great damage as well as a boost to your defenses.

You will probably want to focus in medium armor for the stamina boost it gives. And with Razor spikes, you will still be close to (is not at) the soft cap for armor. For your weapon skills, Cleave is great skill for those times you fight more than one enemy. I'd also recommend Uppercut, as it will give you some CC to help either escape a fight, or render an enemy useless for a bit while you deal with the others.

For your Attribute Points, I would focus mostly in Stamina. I'd place a few into Health every now then, just to keep your health up a bit, and I would only place points into Magicka when you feel you are using your class skills (which is will be your main survivability skills) a lot. So perhaps a break down like: 1M/2H/3S. As you level up you may find that tweaking those ratios a bit will suit your needs better.

I run a similar DK build, but I use dual wield instead of 2 handed, and this works well for me.