Design a prototype in 3d cad

Hello! I am working on a prototype and need som help turning my ideas into a 3d-image for the manufacturer. They need the correct mesurements in order to create the prototype. The product is a plastic tube with a lid. The tube has a flat bottom with a sligt roundness on the edges. The lid is to be screwed onto the tube and have a fliptop cap. In the attached documents you will see what kind of lid I'm reffereing to. It should be similar to the black/grey lid with one big opening making it easy to empty the container. It should not be a loose piece but attached as seen on the green lid. The opening should be as wide as possible. Keep in mind that when emptying the container the contet should not get "stuck" on the inside part of the lid. The black/grey lid is round and smooth on the edges and the same roundness should be on the bottom of the tube. The pattern displayed on the orange prototype tube and logo can be sent in as an ai document. Once the cad file is completed i will have it 3d printed. Adjustment may perhaps be needed so I might need your help to readjust the tube.