Just had the radiator back from the engineers.
We talked about lowering the bottom hose to the bottom and all that was involved( including a new hose from the pump)
The solution I have removed the old malleable iron outlet which requires opening the tank as the base of the outlet is soldered to the tank. This revealed a brass strip shroud around the outlet ( now removed) that would have restricted water flow. We then cut a hole at the bottom if the tank , closed the old hole and created a new outlet that terminates where the old outlet used to be , thus requiring no new hose extension or replacement hose.
All in all , a bit of a phaff but retains the original rad and looks at first glance that nothing has changed, and much cooler running.
Have taken a photo of the adaption if anyone is interested.
