Have to agree with you BT, this is really is a non-starter with a 146, ATR42 or smaller, an outside chance of success but still very doubtfull.
As for linking in with easy's route structure from LTN, an evening arrival into LTN would result in about 80% of easy's flights that day having already departed. However, note, it is really aimed at LTN originating pax doing business in the north. Little chance of success in present format.