Harris Corporation is evaluating the purchase of a new drilling machine that costs $80000. The machine requires $10000 to modify and an increase in net operating working capital of$5000. At the time of purchase what is the net investment required at t=0? The machine will have no effect on revenue but will save the firms $35000 per year in before-tax operating costs. The machine is expected to be sold after 4 years for $25000. Assume the firms marginal tax rate is 40% and annual depreciation rate of 25% in each of the next four years. What is the annual operating cash flow? What is the terminal years non-operating cash flow at the end of Year 4?