What will I need to fix the statue?

Hint 1 of 7:

You should make sure you can see into the chest plate first.

Hint 2 of 7:

The ladder, which you last used to get the stone cup in the statue room,
will be needed here.

Hint 3 of 7:

One of the five parts is an orichalcum bead.  You can get replacements from
the machine in the machine room, if needed.

Hint 4 of 7:

There are three parts that are out in the wide open.  Two were in piles of
junk outside the canal, and the third was inside a cabinet on the canal.