I don't have a car so some parts of Essex are a little in accessible for me however, Wayland at Hoickley is easy for me to get to ( on the line from Liverpool Street) and I've been there and used their 12 *6 tables on several occasions
I've never played Piquet- I'd happily give it a try
I've got around 1000 painted Helenic and Hellenistic figures mostly based for WAB, so as long as the basing is not an issue I'd be happy to visit for a game