Which machine model to buy?

ABC Inc. just accepted a short$-$term $$one time$$ five $(5)-$year contract with a brand new client. At this point, the $$one time$$ contract is not expected to be renewed. ABC Inc. is considering two different machines, Model A or Model B$.$

Model A requires an initial investment of $$12,500.$ It has a maintenance cost of $$5,000$ for Year $1$; $$5,000$ for Year $2$ and $$3,000$ for Year $3.$

Model B requires an initial investment of $$15,000.$ It has a maintenance cost of $$4,000$ for Year $1$; $$4,000$ for Year $2$; $$4,000$ for Year $3$ and $$2,500$ for Year $4.$

Assume that all dollar amounts are to be paid at the $$beginning of the year.$$ You have been hired as the finance advisor for ABC Inc. Provide a thorough recommendation $($i$.$e$.$ both financial and non$-$financial advices$)$ for ABC Inc.

note$-$ The years are $3,4$ so calculate the cost annualy as well as on $12$ year scale. Also assume the interest rate to be $10\%,$ and $20\%$ and give the cost again.

Reminder: Writing only the final answer is NOT sufficient. give explanation and calculations. no google$/$gpt$.$