The advice in the manual for the Engineers ToolRoom BL12-24 (and presumably for the Warco BH600 and Chester Craftsman) said to fix a clamp part way along the bed and sling it from there, adjusting the balance by moving the Tailstock and Saddle. The Fixed Steady would suffice, as long as it cannot open up.
In the event, the sling was placed under a hefty bar, through cast holes at the Headstock end, and under the far end behind the Tailstock, avoiding the Leadscrew and Power shaft. This worked well; the lathe weighs some 300Kg, and being brand new, it was important not to drop it.
I have helped lift a Myford Conniseur by wrapping a sling around the bed, and through itself (to minimise risk of slippage), but not my favourite way of slinging.
Howard