Farmer Ned is trying to decide whether he should rebuild the engine on his current combine or whether he should invest in a new combine to harvest crops for the next 8 years. If Ned rebuilds his combine, it will cost $36,000 to do so and will cost $7,300 per year to operate and maintain. At the end of 8 years, the rebuilt combine will have a negligible salvage value. If Ned purchases a new combine, he would trade in his current combine for $65,000. He estimates a new combine would cost $280,000 and would cost $1,650 per year to maintain. At the end of 8 years, this combine would have a trade in value of $168,000. Assume Ned's MARR is 6%. Compute the EUAC for each alternative using the opportunity cost approach.