wtf? lv6 mana?
You need max possible res, block, skill block, ele res. if you have enough you can put lv5-6 might stones into helmet, uniques. I prefer sword too cuz more attack speed and ashtal or lv3-4-5-6 attack stone (depend on your wallet)
No offense Ptrdgrt but he asked a lv60-71 build, int ohkeros is a lv 78 ring.
You need glorius shuta or blode, normal or int kark. rings with resi and might stones(if 2 or 3 slotted), neck is depend on what you need. more ele dmg/res or movement speed, maybe royal cloak. (or if you get 2 or 3 slotted I say wing royal and might lv6)
Your skill build is depend on your items stats, stones. I posted somewhere not so long ago a ~lv60 knight build what is I think is a good basic, but again skills lvls are depend on your items!