Alright, I am looking to make a character like so:

Race:Khajiit/Argonian
Khajiit- highest base unarmed damage
Argonian- boosted unarmed (http://www.uesp.net/wiki/Skyrim:Argonian#Traits) + histskin (survivability)

Skills + why:
Destruction- nuff' said
Alteration- magic armor + utility spells
Illusion - distractions/invisibility
Sneak - back stabs (is this viable with only hand-to-hand alone?)
Enchanting- just to boost unarmed damage/magic regen

My questions are:
Which race would be a better choice?
Does unarmed alone work to backstab foes, or should I carry a dagger for that?
Would you suggest changes to the skill list? (i.e. is illusion not needed, etc.)