Thanks for the comments, guys. At this point, the current last verse is way too optimistic, considering that we've been informed of major new overruns. Our builder is now into meta-overruns -- estimated overruns on his previous estimates of overruns.
Fortunately for me, my wife has been handling the day-to-day details (and before you ask, only a small part of the overruns are due to her decisions; she has probably saved us about as much due to her extensive internet research). But i think writing this song has helped me keep my sanity.