Vectrix VX 1 parts wanted... battery, sensors

Hi, as a recent newcomer to ownership of a 2008 VX-1, I'm looking for people in the UK who are willing to advise on locating spare (used) NIMH battery cells or complete battery, cell temperature sensors or whole sensor harness.
I wouldn't mind meeting up with anyone close enough to me... I'm in the South Wales area.
I'd appreciate any advise, tips etc...