Pvp gears all the way?

Hi all, I’m gearing my mage, currently using few pieces of T1 and some ZGs, im a huge fan of bg’s (despite the long queue) and i can queue bg all day and night (thats the closest to LFG systems without having to organize a team/raid hassle).

my question is, can i gear my mage with full pvp gear for pve dungeon/raids? (maybe with a couple of raid epics)? i know these gears are good for pvp but are they viable for end game raids compared to raid tiers? (besides r14 weapon for mage coz i think there are better weapons drop off raid bosses)

tyvm