I just came back from a 2-3 year break. I have a level 20 Necromancer, Dervish, Monk, and Assassin. For some reason, I have no more armor on the characters. Not sure why, to be honest. I also only have 60plat currently, but I'm trying to sell all of these miniatures

Anyways, what I'm mainly asking, has anything changed? Besides Eye of the North stuff, did any of the other expansions change in some way, or did any characters change drastically?
Also, I think this question is against the rules of this forum, but I'm going to ask anyways, what constitutes as decent armor? I used to have top armor, I just don't remember what kind of stuff was involved with it.
What can I do to get back into the game?
Thanks, I appreciate any help!