Ramsgate Group - Farnborough
LK+WX: Ramsgate - (Dover -) Ashford - Tonbridge - Sevenoaks - Bromley South - Beckenham Junction - Crystal Palace - Streatham - Clapham Junction - South West Mainline - Farnborough
Ramsgate Group - Ash Vale
LK+CS+WW: Ramsgate - (Dover -) Ashford - Tonbridge - (Sevenoaks - Bromley South - Beckenham Junction - Crystal Palace - Streatham - Croydon -) Redhill - Dorking - Guildford - Aldershot - Ash Vale
LK+WW: Ramsgate - (Dover -) Ashford - Tonbridge - Sevenoaks - Bromley South - Beckenham Junction - Crystal Palace - Streatham - Clapham Junction - South West Mainline - Brookwood - Ash Vale
LR+WW: Ramsgate - Faversham - Chatham - Swanley - Bromley South - Beckenham Junction - Crystal Palace - (Croydon -) Streatham - Clapham Junction - South West Mainline - Brookwood - Ash Vale
Ramsgate Group - Guildford
LK+SD: Doesn't add anything new.
In addition, all of the three above permit the LONDON routeing. You can mix and match the ones below.
Ramsgate Group - London Group
I'm not going to list all the permutations for this one as it will take all day. You have a choice of Victoria, Waterloo, London Bridge, Charing Cross, Blackfriars and Cannon Street and most reasonable routes, whether via HS1 or not, are included. If you have a particular one in mind then we can check.
Farnborough - London Group
WR+CS: Farnborough North - Guildford - Dorking - Redhill - Croydon - Streatham - Clapham Junction - Waterloo
Alternatively, Farnborough North - Wokingham - Reading - Great Western Mainline - Paddington
WX: Farnborough - South West Mainline - Waterloo / Victoria
Ash Vale - London Group
WX+WW: Ash Vale - Aldershot - Guildford - Worplesdon - Woking - South West Mainline - Waterloo / Victoria
Alternatively, Ash Vale - Brookwood - South West Mainline - Waterloo / Victoria
Alternatively, Ash Vale - Brookwood - Woking - (Weybridge -) Chertsey - Staines - Feltham - Hounslow / Richmond - Barnes - Clapham Junction - Waterloo / Victoria
Alternatively, Ash Vale - Brookwood - Woking - (Weybridge -) Chertsey - Staines - Feltham - Kingston - Wimbledon - Clapham Junction - Waterloo / Victoria
Alternatively, Ash Vale - Camberley - Ascot - Staines, then as the above two itinerary.
Guildford - London Group
Not going to list all possibilities for this one either, main points are:
DK: Guildford - Effingham Junction - Epsom - Raynes Park - Wimbledon - Waterloo / Victoria
PD: Guildford - Effingham Junction - Oxshott - Surbiton - Waterloo / Victoria
Alternatively, Guildford - Woking - Surbiton - Waterloo / Victoria
PD+SC / PD+SC+WX: Allows Guildford - Epsom - Wimbledon / Sutton - Streatham / Croydon - Victoria / Charing Cross / Waterloo / Blackfriars / London Bridge. There are plenty of permutations in south London, including all reasonable routes I believe.