You can't rez pets with any spells so far, you will still need vet. Med you could make up for with choice armor with mr, which isn't that hard to find, so you shouldn't have that much problem replacing it, considering there is no insurance on seige. I would still suggest using hide and stealth as extras on that template, just remember not to tell your pet to follow if it gets killed. The ghost will follow you, but it will also reveal your location to anyone around and can be easily revealed by any nearby mage.
A good skill to add in (if you have the room) is spellweaving. Its a stand alone skill and does not require eval. There is quite a few good spells that can be used there. The only drawback is that some are real mana killers.
If you intend to do some PvM, as well as PvP, the spellweaving will allow you to cast 1 natures fury as well as 2 EVs. Word of Death is also a good spell. It can do as much as 150 damage.
I do very little PvP, mainly I use stealth to get into champ spawns and to stealth out when finished, but on the rare occasion that I get interupted, I usually allow my pet to distract my target while I cast on them/stealth around and cast from new location.
