Lightweight vacuum cleaner for a charity (Skipton BD23)

Spirit of Endeavour operates an accessible wide beam canal boat out of Skipton. All our Trustees and crew are volunteers. We clean the boat after every trip but our trusty old Henry hoover is past his best, plus is very heavy and difficult to store in our limited storage area on the boat. So I was wondering if anyone had a lightweight/compact vacuum they no longer need, that we could use? It would have to be one that plugs in, rather than just battery, as we can't leave things on charge overnight (or during the day when we have customers on board).