Everything you have in activated and deactivated, excluding the Icon, the flames, and Multiple Sets you have in the deactivated, roughly 150k upwards, and that's by researching market values and going slightly below them as most people would buy them.
As for Sets, probably do some research into those to find how much they sell for each.
Flames, I will check them when I get a chance to go ingame.
So mostly, you are looking at easily 150k+ for everything. The sets are where most of your money will be coming from though, depending on whether they are full etc or missing a few items.