On the excellent site
http://www.marmalade-skies.co.uk/,
these gigs Green played after he left the band are documented:
The Garage Club, Barnet 14/06/70
Night Angel Club, London 13/06/70
Windsor Festival 08/08/70
Roundhouse, London 13/12/70
Hampstead Country Club 18/12/70
Sadly no one seems to remember these gigs. Wonder if they were with Nick Buck.