So...
I kinda just found the IK chest armor from a regular mob. It has 797 Armor, 175 Strength (base), 3 sockets (of course, I think they always get 3), 222 Vitality, +76 All Res... and man it kicks some serious ass. My previous armor had no res at all, although it had very similar stats (Archon armor, 3 sockets too, similar Str and Vit, but no Res). I also tanked a uber run at MP7 with it. It was the Turmoil portal I think, the one with the siege beast (from Act 3). I isolated the beast alone and tanked it non-stop (the others dps'ed the heck out of Khule), he barely scratched me, and I don't even have any LoH (absolutely zero of it) only Life Regen (around 2.2K Life Regen per second or so).
Slowly, but surely, my Barb is getting where I want him to be (mixture between dps and tanking). Now I need some extra Attack Speed... not sure which items to sacrifice and replace to add that stat amongst the stuff I have. I might go with that Twitching Hour belt I think is the name, with some IAS on it. If not then maybe a new Ring (or two) with it. But anyway, very happy about the IK find. That, and also if I could find a Sky Splitter with a socket for extra Crit Hit Damage it'd help my dps when switching to a tank build (not much can hurt me, but my dps goes down the drain when I do that).
That's a monster find. I think it'll sell well over 200+ mil might be able to get 300+