The whole point of endgame content is that you're not supposed to be able to self-farm gear to solo in the first week.

That being said, there are plenty of public cow games to level and get gear. And they announce Inferno cows regularly where you can do so even more. A naked warcry barb can do hell cows with plenty of mana pots. You'll die a lot, but you'll find gear for your other chars. Or you can save your gold, buy an hr from a vendor and get a full set plus some basic side gear and start crushing cows and pits. Cheers.