Going forward and focusing on the positive-- The inside stakeholders on this project are in love with this thing. My first car was a 1980 Monte Carlo that was two-tone Dark Claret metallic and Claret Metallic red. The Dark Claret had turned into baked horseshit with no more metallic, and it smelled musty because the passenger side rear footwell always filled up with water when it rained. So this is a major step up for Boy and Girl Genius.
Back to the car-- The non-geniuses that owned this previously must have decided that the undertray that lives under the engine was a nuisance item, and decided to not bother reinstalling it. This person also had the parking sensor that was missing up front (torn out during the stunt show...?).
We also noticed that the all of the cowl plastics were not even installed when we first looked at it in the junk lot, which we thought was a positive because anyone else looking at it would think it's all broken (which it wasn't, but made things look really bad). So we're starting to think that someone started to work on this and just cut their losses, which seems plausible. So, used undertray and parking sensor from eBay, and have extra bolts from the E46, so will keep mending all of these things as we find them.