I bought one of the used low mileage engines imported from Japan, they’re about $900 around here and just swapped a few parts from my my blown engine. I believe the replacement was from a Diamanté. Has worked perfect for 10 years, put about 90,000 miles on it so far. Be sure it’s not something as simple as a cooling fan clutch. Mine went out, temp would rise when I slowed down or sat at a stoplight. Good luck!