How much does it cost to overhaul an FJ44?
FJ44 engine overhauls (every 3,500 hours) start at around $250,000 per engine, but average $350,000 (plus the cost of rental engines if you want to keep flying during the overhaul). Overhauls cost well over 100k (possibly over 250k I think) and need to be performed every 2200 flight hours. If your buying a r44 for 150k I would expect that overhaul needs to be performed within the first year.