can i buy a newer merc trim pump to replace my older trim pump with the same "J1171" part number? im having a hard time tracking down the pump part of the unit so i figured i would just replace the whole thing. i am just worried about the hydrolic lines fitting the pump. is ebay an ok place to look? i have seen tons of them on htere. i dont really feel like paying 400+ $ for one either. any ideas ?