Oh, really? Never managed to level a mage high enough to go to grims haha. At least I've always been too scared to because of the frequent re-targeting. As for a solo-hunt, I agree with Bay butcher (and dat ass). Dragon Lords would be good experience and Frost Dragons probably isn't too crowded (depending on server).
Eh. I'm not that big on tombs. I feel like it has to be a straight grind fest just to see results.