I love the cast iron legs with the fancy cross support structure!
To restore the late into usable condition will be a challenge. To me it seems like it is quite rusty, everywhere. We all know that cast iron does not rust as badly due to the high carbon content, but restoring the machined surface will not be easy.
I adore the grease fittings for the spindle bronze bearings. Wonderful!
The bronze bearings less so, but with the right knowledge and tools they can be replaced and broached to the right size.
Many parts can be sand/media blasted to restore the surface. You may even try iceblasting the machined surfaces. Keep everything well oiled afterwards.
Great conversation piece but takes a very skilled machinist to turn steel parts with good surface and close tolerances. Aluminium and brass will be much easier.
Best regards with the job.
Ola