Mmm... let's see. 5 bil a month? It would take some skills. You have to do salvaging, archiology, hacking. Run the sleeper sites, salvage everythign and loot. Know how to use your modules to collect datacores and relics. Be able to mine gasses when available. I prefer a class 3 wormhole and yes, a POS with friends. the seven of us came out with 5 bil apiece. Instead of selling what you collect, consider manufacturing, or contacting someone who can manufacture T 3 parts. Sure, you have to build a deathstar POS, and it can be risky to fuel it. Wormholes are more lawless than losec. and that's saying something. Profitable? yes. with the right skills and ships. Know your sleeper types and what you can tank.