Reporting back.

In the end I didn't bother with a tripod as BBC Weather said it would probably be raining the whole time. It actually turned out really nice and was sunny. On the second night I took the photos of the buildings and the sheeting was still on the side of the Cunard Building. I braced my camera against a handrail and bracketed from one to ten seconds. It was really windy and I ended up shooting a whole roll of film to make sure I had at least one shot where the camera didn't move. This is a test print from last night, needs a bit of work on the highlights:

Fuji Reala, Nikon 18mm lens.