Portable stainless outboard motor test tank

I have a portable stainless outboard motor test tank. Have run my Yamaha 30 HP outboard  in it which weighs 130lbs and has a 20" leg. Has water ports to fill/shut off with a black hose to keep water consistent while running motor. Water drain below with hose connection. Two x six construction on collapsible wooden transom. Wooden transom has aluminum plate for clamping motor. Much better than "muffs" as the motor can be run at a higher RPM.  Tank interior - 30L x 18"D x 18"W. From transom to test tank floor is 36".  Assembly and taken down in minutes. Easy transport.