A DIY list if you have enchanting and/or smithing. Note that daggers does not benefit from Fortify One-handed enchants, but do benefit from the Armsman perk.
Armor:
The difference between glass/dragonscale/elven in armor values is minute. Elven is the lightest of the three, but go for style.
If you want to keep the DB armor look, you can find an enchantable set called Worn Shrouded, in the Dawnstar sanctuary (the worn gloves aren't pre-enchanted - the backstab enchant on those is a display bug).
Helm: Fortify Archery (+ your choice if you have Extra Effect. I'd take Waterbreathing)
Chest: Fortify Health or Stamina (or both with Extra Effect)
Gloves: Fortify One-handed or Archery, depending on your preference (or both). Keep a pair of shrouded gloves for the backstab multiplier.
Feet: Fortify One-handed (and your choice of fire/frost resistance with Extra Effect). Muffle isn't needed with a high sneak skill and the muffle perk.
Necklace: Fortify One-handed or Archery (and Magic Resistance with Extra Effect. If Breton, go with Fortify One-handed and Archery).
Ring: Fortify One-handed or Archery (and Magic Resistance with Extra Effect. If Breton, go with Fortify One-handed and Archery).
You will probably want to make a set that gives you 85% magic resistance and at least 50% fire/frost/shock resistance, for those mages that can kill you in two spells otherwise.
Weapon:
The difference between daedric, ebony and glass is pretty small. You won't feel much a difference.
Sword/Mace/Axe: Absorb Health (+ Absorb Stamina with Extra Effect)
Dagger: (Fiery) Soul Trap (+ Damage Shock)
Bow: Damage Frost (+ (Fiery) Soul Trap).
Keep Azura's Star or the Black Star in your bags as you'll need to recharge those weapons a lot
