Some of you may have seen my last thread and know that my panel is a mess. I am trying to figure out whether I should clean it up or replace it. The current panel is a 200a Federal Pacific Stab-Lok. The house originally had electric heat, which has since been replaced so half of the panel contains a bunch of empty double pole 15a breakers. While the previous owners had the electric heating, they built a sunroom onto the house. It looks like, in order to add circuits for the addition, they ran a 4 fuse sub-panel off a double pole 60a breaker and placed it right beside the main panel. This subpanel handles the basement outlets and the lights and outlets in the sunroom. My first thought was, since there is lots of capacity in the main panel, I should get rid of the sub-panel (it's in terrible shape and is rusting out) and run those circuits into the main panel on new breakers. Then I starting researching and found concerns about my panel as a latent fire hazard and reports of failed breaker trips. So I'm wondering if I should just replace the whole panel. The house is going to be put on the market very soon, and I certainly don't want a deal to fall through because an inspector doesn't like the panel.
Any thoughts on which way to go? Any thought on the concerns about my panel?