Stop Drop and Roll

A few months ago the vent in our bathroom shorted out and caught fire. The plastic surround melted and was literally dropping fireballs into our bathroom. It was all quite delightful. Anyway, we finally got a chance to start on the project and see exactly what the damage is. We ended up having to remove a portion of the drywall and discovered three very interesting things:
1. The hose that would connect the vent to the ceiling was missing, letting leaves and other random things fall onto the insulation, which then landed on the wiring that shorted out.

2. There is hardly any insulation in the ceiling.

3. The bathroom wasn't built using green board.

I'm planning to fix the first two, and will replace the drywall we removed with green board to at least make that situation a bit better. I figure that should take up the next few weekends in my life but it will be nice to upgrade the insulation before the summer weather hits.