It'll be relatively easy to move the AH regiments from Wattisham, but moving 7 Battalion and 132 is a whole different kettle of fish!
Moving the Apaches is all that is needed. This is about justifying Wallop's existence rather than any particular want/need to close Wattisham.
And when flying at Wattisham does end, the crown for Britain's most northerly helicopter base will pass to Benson!