Have to concur with Hopper on this one.
I carted a Sphere lathe around for donkeys years, always with the idea I would, one day, restore it to it's former glory, (if it ever had one).
When I finally got it built up to a stage where I could try and make some swarf, I discovered that it was only any good at turning random sized eggs.
As I'm a total novice, it became clear that it was impeding my learning. Best thing I did was to finally bin it, and bought myself a nice, shiny new Warco.
Perhaps, after much more experience has been gained, it may have been worth tackling as a lost time restoration project. But, then, I would have needed a decent lathe to do that 
Just my tuppence worth; but I would say "leave alone".
All the best
Daniel