I did it in legacy with a couple accounts, not very efficient just rolling the dice. From what I've seen this week on personal loot I'd say a bunch of plate in a normal party, figure out which specs have the least drops still including the sword.
The tick just scales flat with strength, I think, cuz ret SP is based on that. Not sure of the actual scaling, but that pic shows like 154 heal increase for 146 str? Something close to that, I'm not in game anymore so cant see exactly.
Also that's why i have 6-7 empty sockets, wasnt sure how many talasite i would add or not. The rest are 2/2 gems.
Not sure if it scales with mastery, be worth looking into just in case.
edit- looking at it, if we get the 5% stat buff at 20 that would explain the 154, 146 x 1.05 = 153.3... so 154 really.
I didnt look at the procs, just tried to remember what they are when i said 146...