Heater hose and watercock

Does anyone have recommendations for replacing the heater hoses from the heater core to the coolant passages/water cock? the hose from the line inside the "v" of the engine to the firewall was leaking and the auto parts stores don't have a replacement, I was thinking maybe a generic 90 degree bend hose that I can cut to fit. There are a few on RockAuto, but I can't really tell if any are exact fit. The hose that is broken is 27181 in the diagram, the rest of the watercock hoses are 27184 and 27183. Thoughts? I do want to keep the heater function, but I don't even know if the water valve/vacuum actuator functions right now.