From the Trade Me ad
"The water tight integrity is somewhat compromised due to the (localised) areas of erosion & resultant water ingress There was a towel/rag pushed in to a hull breach at waterline. The port side appeared to have more areas of potential diminished (watertight) integrity, however there was a similar occurrences on both sides."
It would take enormous amounts of money to make the hull water tight. The Detroit hasn't run for many years (decades) and the steel superstructure is so rusty you can see thru it.
The harbour master has said that they would not let