Chris, thank you for your response. Very positive. Much appreciated.
I wasn't planning on buying a mill for maybe another year. My thought was to become totally familiar with the Bantam first. But …….
Whilst I still have much to learn in terms of turning expertise, I find the Bantam to be so user friendly and versatile that I am happily engaging upon work which I never imagined that I would be even contemplating at this stage. So …… When the Elliott appeared on the horizon, I was immediately drawn toward it. 
This particular machine is single phase -240V – but apparently does allow all four motors to operate, Whether they will all do so at the same time is something I do not know. And will be one of the first questions when I view it.
The seller has also acquired a Bridgeport, hence the reason for the sale of the Elliott.
I confess that I know absolutely nothing (even less than I knew about metal lathes) about milling machines 
So I will be taking my friend from across the road with me, to view it. Whilst not a qualified engineer, he has been involved in the engineering fraternity for something approaching 30 years, so knows considerably more than I do.
As to "overarm, all arbors and the steady is with it, and if you are lucky you may have a full set of feed change gears", I have no idea what else is available. There was certainly no photographs of anything other than the turret mill.
Are parts for the Omnimill still available? Or can they be made?
My thought was to dispose of (sell) my floor standing radial arm drill, and replace it with the mill. I do use the radial dril quite a lot in the course of my woodturning, but hope that I will be able to adapt the mill to do what the drill presently does. Is that a feasible scenario?