3d Print file (stl) for a simple box

Hello, I need a couple 3d printer files (.stl). I need a 4x4x4 inch cube with one side open with walls that are 2 mm thick. The open side will need to be separate where it can either click or slide into the main body after the install of the electronics. On the side opposite the missing side, i need a couple of half moon brackets (2.5mm thick) in one corner that i can lay a pump in. The pump is a cylinder with a diameter of 27mm. I want the first bracket to be 1.6 in from the wall and 0.5 inch from the othe corner wall, with the second 2.85 in away from the same wall. The wall should have a square hole of 0.8 inch for inlet/outlet for the pump. Here is the part I need some design help. I need to include a spot for a 9V battery compartment, where it won't hit the pump and have a door so the user can replace the battery. The battery compartment will need to have a hole where I can run wire from there to the pump. Attached I have put my rendering, but was unable to come up with a good way for the battery compartment/battery door. So the final deliverable will be .stl files in order to complete the 4x4x4in cube with a battery door to install a 9v battery by the consumer.