I have a 2000 sea ray 180 and the gas struts that hold the engine cover up need to be replaced. The ones that are on their now are short and I need longer ones. The struts that I am finding (auto zone, orielly, napa) are either not long enough or they are made to hold a much higher weight then needed. Does anyone know where to get the correct ones? I see all the struts have a weight limit but I don't know the weight of the canopy.