Ok ... its not a round route, it's there and back (but that's no bother - they're nice roads and they'll look completely different on the way home..)
Come into Kent and head for Hurst Green, get on the A21.
Drive North and come off on the B2079, It'll take you past Bedgebury forest to Goudhurst.
Goudhurst turn right and ride the A262 east bound all the way to 'Thre Chimneys' (This is about 2 mile short of Bidenden on a sharp right hand bend).
Turn left at three chimneys and follow the road (Frittenden road), follow it over the crossroads at Headcorn road, (now into Bell lane..), and follow that road all the way to Pluckley.
Pluckley to Charing ..
From charing use what ever your satnav says to take little rural b roads to Stalisfield Green.
http://www.tripadvisor.co.uk/Restau...Stalisfield_Green-Faversham_Kent_England.html
http://www.stalisfieldgreen.co.uk/
Go home the way you came.
Trust me ... Luverly roads ...