Sadly I am otherwise engaged in deepest Northamptonshire on that weekend.
For anyone thinking of going I can highly recommend the Crofton engines-amazing to think that one has been in situ since Napoleon was making a spot of bother in Europe....
Recently, following a major breakdown of the modern electric pumps, the engines had to be called back into service until repairs could be carried out.
If you go to Crofton, you're only a stones throw from Wilton Windmill, also well worth a visit.
http://www.wiltonwindmill.co.uk/