Average item level calculation needs fixing, as does lv50 gear progression

[melflomil]

That would put your average ilvl below 50; you're saying that it needs to be 70. That's a really big gap you aren't accounting for. I'm pretty certain he can be tanked in full Hoplite (plus one ring).

Yes he can most definitely, at this stage of the game SE probably thought that healers would put either stone skin or Aldloqium up. To help the tank while the tank uses cool downs.