Bearing in mind that the Soviet Union was aiming to get as far as the channel PDQ, (36 hours?) I don't think much would have been left either side of the gap.
Our dispersed SH sites were observed by Soviet folk, even in peacetime. As a helicopter pilot, the thought of going into the melee of WW3 in a completely unarmed aircraft didn't fill me with much hope about my chances of going home outside of a box, if ever.