Why are you so against using the gold AH? Think of it as an NPC vendor with a larger selection and only do buyouts so you get the item instantly.
While leveling my 2nd character I've been buying AH gear with gold from my first character. You can get great stuff for 5,000g or less at most levels. There are even decent lvl 60 items at 10,000g - 20,000g.
I find stuff that would sell on the AH constantly. Everybody is at different points of progression, it can still be crap but better than what you have
I got to inferno buying 5k-20k items here and there.
But when you're in Act 3 inferno, you need gear that costs millions and gear that sales for millions to progress and I got nothing worth selling after 50 hours of goblin/champ farming. I couldn't even get people to buy a bunch of items worth around 50k-100k undercutting other items on the AH.
I'm unlucky or whatever, but the loot RNG is affected by the Auction Houses existence because you can't constantly get great items. Everyone would beat inferno too fast.
But I was on the other end of the extreme and got shit items constantly. I never once found an item for myself. It's just not fun for me.
I'd rather be on a server without an AH, buffed RNG, so I could progress at a decent pace and have fun killing monsters.
Anyways, I just respond to people who are in the same boat if there's a post when I look at the thread every so often.
If you are doing good and having fun, that's good.
Edit: I only see a few ways to progress. 1-Botting, 2-RMAH, 3-Buying/Reselling Gold AH, 4-Being very lucky with drops in a very crappy RNG system.
I don't like any of those.