If a 10 EE make sure you can get parts for the drive systems.
Hardinge HLVH. Easiest threading in the world.
Don't forget the Europeans.
Graziano, now owned by Deckel Maho is very nice.
Dean Smith & Grace is the Rolls Royce of lathe.
If you get a new lathe, drain the oil. Now. Then run it thru a filter, coffee type.
Break it in and change the oil.
You will thank me later.