Any Beogram tangential is worth saving in my opinion, at least it deserves a try.
It seems to me that the only things missing (visibly) in the photos is the black subplatter and motor-(eddy-current) coils, maybe some leaf springs for the suspension.
These are things that shouldn't be too hard to find, I may even have some, but I suggest you open up the Beogram into service position and take another photo, that would allow us to see if more parts are missing.
Martin