Jensen Systems purchases several parts for the instruments it makes via a fixed-price contract of $155,000 per year from a local supplier. The new president of Jensen wants to make the parts inhouse through the purchase of equipment that will have a first cost of $240,000 with an estimated salvage value of $30,000 after 5 years. The AOC is difficult to estimate, but company engineers have made optimistic, most likely, and pessimistic estimates of $70,000, $85,000, and $120,000 per year, respectively. Determine if the company should purchase the equipment under any of the operating cost scenarios. The MARR is 20% per year.