I also have a large quantity of Sphere docs and a big pile of
hardware, but it was part of a deal with Jim Willing that went bad.
I have tried to get the stuff back, but he is not responding.
--
It's probably sitting next to the Tektronix 405x documentation I never
received.
I don't think short of you driving to Kansas and watching him go through
everything that he still has that you will ever see the Sphere stuff again.