I really messed this one up, I stipped one of the hose threads on body of my Volvo Hydraulic Trim Pump, Volvo part #852928, for a SP-A outdrive. My question is what is going to be the cheapest fix for this, since I cannot find a new valve body portion of the pump? Can I take it to a shop and have a heli-coil put in, or will that not work? Does anyone know if you can just buy the valve body portion alone or do I have to buy the whole unit? Are there any cheaper replacement units than the Volvo one? Thank you!