Just put this up and it's sold (so you assume for the asking £3200 or near to) so gives an indication of what some will pay for a running project.
Not UK registered but in the UK, running project it says.
https://www.ebay.co.uk/itm/283477603401
Just think I got my 1100 in 2010 and would say it was near the top condition expected of a bike that was actually used and hence top price of £2500! Glad I got it then.