In order NOT to be responsible for you being disappointed after putting lots of effort in your char:
No, ele is NOT nice in PvP it's one of the shittiest classes ... You can get AVERAGE on great gear and a decent casting technique, but any other caster with better gear will rock much more (maybe except for some rangers/cast swashes.. depends on the player)
I made a guide on forums but it's
not up to date
... just noticed there's an embarassing typo but I can't login to fix it >.<
Well go for Absolute Boots & Armpads and stone then with Ashtals/Aishtals and in case you got a 4 slot garb you can put Skill Awakening Stone + Combined Magical Prayer stone in it.
I think the rest is pretty much said in there, I wouldn't stick to the skillbuilds as they aren't not up 2 date either and depend very much on your playstyle.