[Frameworks] Fairlight CVI

[George, Sherman]

This list seems to have large following among people interested in experimental visual media and if you can lead me to the right person or group I would be grateful.
I am part of a group refurbishing a Nam June Paik video installation. The heart of the installation is a Fairlight Computer Video Instrument. When Nam June created the active part of the installation he wanted viewers to be able to manipulate an incoming video signal with their hands so the slider and touch pad of the CVI was perfect for the installation. Since being installed in 1986 the original CVI has been repaired many times and a second CVI installed and repaired until there seem no life left in the electronics.
My questions to the group are;
Does any one know where we could purchase used CVI's?
Is there a electronic repair person with experience in working on CVI's and with a supply of spare parts?
Is there a modern replacement for the CVI that does not rely on a keyboard for input and processes analog video?
Please contact me off list if you can supply any leads.
Thanks for your time.
To view the installation please go to:

http://stuartcollection.ucsd.edu/artists/paik.shtml

sgeorge at ucsd.edu
858-229-4368