Bio cube replacement parts

I made a mistake of buying a used Oceanic Biocube14 and after returning home I found several important parts are missing. I've spent time online trying to find these parts to purchase with no luck. Does anyone have any suggestions? The parts I need are output discharge nozzle, output elbow attachment, flexible tubing. I will also be purchasing a new pump and a new heater, so any suggestions are welcome. Thank you! Blessings, Mary