I can answer the first question. The economy seems to have stablized quite a bit compared to when I last played, but there's been some inflation on things like MPs and lv100 chips. From what I remember, 92e's are cheaper. I've seen some (blank/bad mods) for no less than 95m, which isn't bad.
As for Elysium, I haven't seen any of them running around. Maelstrom seems to have disappeared, too.