I have agreed that I will level up my Smithing up to level 80, as well as unlock the perks required to get Ebony Armor.
I can do this one or two ways:
1. Raid, loot, and make profits off of dungeons (my usual method to make money). Then use the money to train in Smithing by the trainers.
2. Clear Xbox cache, and do the Iron Dagger exploit. This made the game un-fun last time I did this, so I don't know...
Depends how fast you want to get the ebony armor.
As I mentioned above, a pick, iron ore deposit, transmute spell ... all of which are available in the same spot fairly close to Whiterun ... and jewellry making can be extremely helpful in getting your smithing up, not to mention the gold you get for selling the jewelry ... even more if you, as another poster suggested, enchant it (and help your enchanting level as well) first.
And for me at least, it felt like less of an "exploit" going this route ... or at least I found it easier to rationalize than making hundreds of iron daggers.
Lots of iron deposits in Skyrim.