The Imperial study estimated a need for 100k ventilator intensive care beds at peak in the UK, currently there are 5k beds, and they’ve managed to find another 5k ventilators using spares and old models. The government is planning on using ventilator technicians (usually 1 per bed) to manage many beds, with newly trained junior staff managing each bed. So assuming no treatment breakthrough they will need something on the order of a ten fold increase in ventilators and a 20 fold increase in staff numbers, on current trajectories within a month or two, and with full suppression maybe in the Autumn.