6 spanners and a mallet, and the armor is pretty much new.
I fly a Goldfish 85% of the time, but it doesn't feel "tanky" like the Galleon does.
That may just be my tendency to panic when the hull goes down, or maybe our good fish's relative fast speed an quick turning, or maybe I just run into a lot of explosive-laden ships.
While, yes, it can take a fair bit of punishment, it can't take punishment consistently. If you manage to win a close fight while flying a Junker, you can repair most of your total hitpoints. Winning a close fight on a Goldfish leaves you with significantly less of your total hitpoints.