Darcy
You can moor overnight at the top lock on the Wigan flight, there is a new shower block there as well. There are 2 pubs within 100 yards of the top lock. Aim to start the lock flight first thing in the morning, if you are lucky the lock keepers will cycle in front of you setting the locks for you thus leaving your crew to operate the heavy lock gates.
You need to check on the Wigan Council website about Trencherfield Mill Engine opening times as there have been major changes at the Wigan Pier site recently.
Steve