Hi guys, a friend and I have recently started playing and love the mod. However, we are approaching 120 and realizing the end game is much more complex than we had initially realized. I have struck up a totem necro, and love it, but can't help but feel like my equipment is in dire need of an overhaul. I've read through a handful of guides, and picked up on how to craft proper bases etc. for runewords, but alas I cannot identify what kind of runewords I should be shooting for. Right now I'm following the itemization given in the beginners thread build for the totem necro, and have T6 uniques all around with a single honorific piece of gear to cover resist holes. I've identified a major issue with character defense in general, and feel like there must be something I'm doing wrong as we start progressing through Destruction difficulty.
Here are my stats currently, wearing a Lord of Thorns, Queen of Glass, Lionpaw's, Aerin Orbiter, honorific gloves with 60 all res, a rare circlet, and various stated rings+amulet (+2 amulet, minion damage, FHR, -19% fire res)

Any suggestions for what I should be aiming for is greatly appreciated. I'm not opposed to the idea of swapping to a new build either. I've read that melee necros are good, but again, I'm not sure how I should approach this.
Thanks guys