Overhead lifting is best if you have the head room....no floor space consumption,
Fixed track is fine if the floor plan is static...I have trouble settling on a "final" position for my machines as things change.
At work we built a free standing jib crane. More or less all the main iron is located Around the circle of the crane reach, to include the FP3, FP4NC , Kondia Powermill, and the
Berco BC4 line boring machine...also in the circle is a shop built rack that holds vises, rotary tables, Dividing heads,index spacer....
Crane also reaches the Lista cabnet that houses additional tooling....
Have used that jib crane to remove and install the "Tool Makers table (2038) on my FP4NC, using the "T" slots which by the way is shown in the Deckel users manual....
Home setup has an articulated arm crane (Spanco) mounted from above (14" glue lam beam) that reaches the entire floor space of the machine shop (addition to 3 car garage)
Articulating Jib Cranes - Spanco
Cheers Ross