We tore out quite a bit of old electrical cables and tons of dust. Tons. 2 shop vacs full. Black boogers days later.
Finally... after months and months of stapling up heating tubes, running electrical wires, etc. We put up the ceiling. Particle Board. Will and Brandt did most of it. The worst was the reflective insulation. You have to create an air space and have it close to - but not touching the heating tubes. How many techniques were tried, curses evoked, staplers flung in frustration... before we finally got it done right?
And... Sheetrock. Hot Damn.