Help me design a stool prototype

Im looking for someone that has experience in digital fabrication and product design. I have drawn up a basic sketch from my idea in Fusion 360 that i will share for reference. This time the product concept is a step up stool from 18mm birch plywood. The construction will be held together using wedges of birch plywood. You need to be able to provide both design files and the cut CNC cam files after the project is done. Design description . The design is of a step up stool to reach high places like sink or shelf. The design is just one step. The design uses a wedge that is hammered in to place to lock the legs in place with no glue or nails. The joint needs to be visible from the top. This is the list of the things that need to get worked on Main task 1. Adapt the fusion 360 sketch i made for real-world use and adapt the design to something you are pleased with. You can redesign the joint if you keep the core idea of using a wedge. Considerations for the main task Height for kids and adults A good low center of balance so it won't tip over. Strong joint. Use wedges to hold the legs in place no nails or glue. Recommendation of logo placement. And cut depth for it. Secondary tasks. 2. Make cam files for cutting in plywood with compact orientation. Dwg file. 3. Provide documentation of design choices. 4. Make assembly drawing how to put it together. 5. Provide raw design files Please see the attached pictures so you have a better idea of the design. Questions Can you provide the raw design file to if i need to make some adjustments in the future? And is it possible to get the work saved in a format for the Autodesk fusion 360 or inventor? What is the estimate of the time you think you need? Best regards Martin I.