My friend from work dumpster dives (conjures up a pretty gross image, I know, but it's really not that bad!) from retail stores and has found me some cool equipment that petsmart threw out. He found a rena xp1 canister filter, and it is in good shape, but is missing all the tubes/hardware that are supposed to come with it. The actual filter still has the two intake and outtake parts on top. Can I cheaply rig a system of tubes for the filter, or do I really just need to break down and buy the accessory tray for 60.00? I'd really rather not do that...