A few ideas for routes I have are
1 Glendale along to west wallsend and along John Renshaw turning left at the sweeper to Mulbring and through to Cessnock and on to Bellbird down past sweetmans timber to Wollimbi pub for lunch. Take Wollimbi road to the F3 and home that way. Or could change the meet point to Freemans for any Central Coast cars that want to join
2. Glendale, Mulbring , Cessnock then along to Broke and take the road to Millbrodale and into Singleton for lunch. Leave Singo and go along Queen St past the school all the way to the end and turn right for some nice country road back to Branxton and home from there
That's the only two I can think of at the moment