Sorry ... missed this before. You should try SADCASE (Storrington and District Classic and Sportscar Enthusiasts). They meet twice monthly, the second and fourth Tuesday of the month. The fourth Tuesday is at the Spur at Slindon (just off the A27) at the Arundel roundabout. Many members live and work around the Worthing area, there are also many TR Register members that are also SADCASE members.