Terenas - Gearing Up

[Concillian]

I've come to a decision point and any help would be welcome.

I am close on mats for ET legs or lionheart helm.

For ET legs I'm short:
~20 Dream dust (easy enough to get)
5 essence of water, I can get friendly with furlbogs to transmute 2 of the earth I have to water, the other 3 should be easy enough to come by.

For Lionheart Helm I'm short:
2 arcanite bars (have the crystals, will have them transmuted by next week)
"some" sapphires (requires 10, I have somewhere between 2 and 4. Add in mining in the next week + buying on AH, and I can probably have them by next week without issue)

Lionheart helm will probably have a significant "fabrication fee" since there are only one or two people who can make it on horde side, probably ~50-100g more than ET legs will cost.

I currently have a DPS helm, "Fury Visor" Lionheart is very similar, but better in every way (+1% crit +1% hit +120 armor)

I currently don't have tanking leggings, and have been using the PvP leggings, which have exactly the same armor value.
In tanking gear I'd gain +13 STR, +8 STA, +8 defense
and I'd lose +2% crit and the +1% parry set bonus... I'll lose the set bonus anyway when I get a tanking chestpiece.

I currently have only +24 defense in tanking gear, and my DPS gear is pretty good for blues, so I've been leaning towards the ET legs. If I did so, it might take an extra week or two because I'd want to make it myself, so would work to get Armorsmithing volume II (the rare piece of which is the top half, a 5% drop from Rattlegore in scholo, the common piece is a ~40% drop from Crimson Hammersmith in strat).

Any opinions either way?