"Relative to the ceiling rafters that will become floor joists, I plan to sister each member with a new joist in the areas considered "living spaces".

Hmmm, let's see how many ways this will go wrong...
- going to match the existing joists in size or is there actually knowledge present to determine correct new joist size, for load req?
- bathroom, I wonder if it is going to have a tub that fills with water, a terazzo shower base, or a poured and tiled 2 person shower base? That doesn't weigh much
- doesn't sound like those new joists are going to run ext wall to ext wall
- I wonder if they will even run load bearing wall to load bearing wall or ext wall; might be helpful
- I didn't realize it would be so easy to install new joists after the insulation is installed.
- Sister joists any idea how that is done properly or do you just shoot a box of nails into everything?
I'm really not trying to sound too insulting but there are so many holes in your game plan, I can't but help shake my head knowingly and wait for the disaster 'what do I do now' post.

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