I happened to have a free half day in Brighton a few weeks ago and decided to visit this museum. I had a very enjoyable couple of hours in there and found one particular document in the Brighton and Hove Albion F.C. section, which was there at the time, especially interesting. I emailed the museum a few days later to find out whether I would be able to obtain a copy of it for my own reference. They replied the next day saying that that document, along with many others, would be available to download from the website in about 5 weeks time at the close of that particular exhibition. I received an email today with a link to the page and was able to download the document.
Particular thanks must go to a Mr Dan Robertson who responded to my enquiry.