prio 1: get rid of the staff.that's +15% reduction vs melee.

1,3k resi is defenitily not to much resi.
5% hit is enough for pvp, so once you lose the hit from staff you'd need a hit neck or so to compensate.
I'd drop the haste and go for SP untill you've got around 3k SP unbuffed.
Needle from HC POS + protecive barrier of light or w/e it's called from emblems would be a good upgrade.
Battlemaster trinket with 150 SP would defenitily help.