ISO Water tray about 4’x4′

Hi Cube! I have a shoot tomorrow and the client is asking for a water tray about 3x3' or 4x4', sides can be 3" high or so. It's too late to have this made by Canal Plastics or T&T Plastics so I was wondering if anyone out there might have one they could rent to me or sell to me for the shoot? I could handle delivery and drop off. Please let me know, thank you!