Post by Arideni
I know you said without finding a group, but...let's face it: you're pretty much above solo-able gear now, except trinkets & you can't afford, without replacing other items, to upgrade the trinkets yet.
Work hard getting huge +defense items, such a chestplate, bracers, or probably more than anything else, a new belt/boots. Unfortunately, this is easier said than done. Here's a few things I found, but they pretty much require Badges, =(
The exception are the Red Havoc Boots, which you can craft if you are a blacksmith (I take it you are not, since you are using Grom'tor's Charge & lack any of the relavent BoPs). At least you can walk away with a couple ideas of what to replace next & in what order to do it. I would recommend getting some major upgrades, such as boots & belt first since you actually have less than 490 defense if you remove two gems
. Speaking of gems, clever idea with the helmet socket; that worked very well for you!
Post by DrDrako
Pick up Bracers of the Ancient Phalanx
(will help your Defense rating & expertise as well)
the link shows the cloak u linked previously. might want to fix that to avoid future confusion =D