I've levelled up a Stamplar Khajiit (Crit-based build) and it worked pretty well. What I missed against single monsters/npcs was a reliable self-heal, but if you have Repentance and a couple of good health potions you're good to go. Also, if you decide to go for 2h instead of Dual Wield you can gain access to Momentum and its morphs for additional healing power
Can also replace sword and shield with bow for more manouvre. Instead of defensive stance put poision injection
I mix skills a lot. Sometimes use total dark or magnum shot with bow instead of rune focus. Can drop executioner if you want for more utility as jabs hits really hard.