A manufacturer is considering the installation of a handling system for $30,000,000. The system will provide $6,000,000/year in savings but will require maintenance costs of $500,000 every two years (starting in year 2 and ending in year 8). There is no salvage value at the end of its 10-year life. If the after-tax MARR is 10%, should the company recommend implementation? Calculate the present worth and internal rate of return on an after-tax cash flow basis using both straight line depreciation and 7-year MACRS depreciation schedules. The tax rate is 38%.