I am in need to your help regarding the solution of Chapter 17 Mini-Case ( MC 17B) page 582 in Corporate Finance Textbook (3rd ed.):

Barclay Polymers needs to acquire a new extruding machine whose purchase price $ 600,000. However, the firm could lease the extruder from primal leasing Corporation for a 5-year period and make annual payments of $ 115,000 at the begining of the year. If the extruder is leased, then Primal leasing corporation would pay all maintenance costs and Barclay would have the opprtunity to purchase the asset for $ 130,000 at the begining of year 5. If the extruder is purchased by Barclay, then it will be financed with a 5-year loan at an annual rate of 8.75%. Barclay would use the MACRS depreciation method over a 5-year recovery period, would purchase a service contract for $ 8,000 a year , and would keep the extruder after its recovery period. If the firm pursues the purchase alternative, then it would secure a maintenance contract at an expected cost of $ 3,000 annually. The firm is in a 35% tax bracket.

a) Calculate the annual after-tax cash outflow for the leasing alternative.

b) Determine the annual interest and principal payments for the purchase alternative.

c) Determine the annual depreciation deduction for the purchase alternative.

d) Calculat the net present value of both the leasing and purchase alternatives. Which method should Barclay Polymers use to obtain the extruder?