Hayden Incorporated has a number of copiers that were bought four years ago for $$27,000.$ Currently maintenance costs $$2,700$ a year, but the maintenance agreement expires at the end of two years, and thereafter, the annual maintenance charge will rise to $$8,700.$ The machines have a current resale value of $$8,700,$ but at the end of year $2,$ their value will have fallen to $$4,200.$ By the end of year $6,$ the machines will be valueless and would be scrapped.

Hayden is considering replacing the copiers with new machines that would do essentially the same job. These machines cost $$32,000,$ and the company can take out an eight$-$year maintenance contract for $$1,000$ a year. The machines would have no value by the end of the eight years and would be scrapped.

Both machines are depreciated using seven$-$year straight$-$line depreciation, and the tax rate is $40\%.$ Assume for simplicity that the inflation rate is zero. The real cost of capital is $7\%.$

Calculate the equivalent annual cost, if the copiers are: $($i$)$ replaced now, $($ii$)$ replaced two years from now, or $($iii$)$ replaced six years from now.