hi i need help just purchased a second hand boat with a new merc 496 and bravo one leg . i just had it to dealer to check over heating problem . while it was in there they pulled leg of and found water inside and told me it needs new gimbal bearing.went to pick it up and they gave me a bill for $2000.00 after being there for five weeks.no warr, now they have to pull leg of again because they forgot to put part in before reassembly.what is normal cost for gimbal replacment