Product structural calculations

I am looking for a structural engineer that can calculated the strength and deflection of a new product we are working on.
We are looking to compare the strength of three different designs that to help us to decide which is the best for our calculations.
The three different drawings attached are available in 3d CAD assembly models
Please send through a price to complete the whole project.
We will need to test each concept to the following load scenarios (direction and load position as indicated on the drawings) - 5kg/10kg/25kg (total of 9 sets of results) and all of the products will be fixed directly to a wall using holes in the fabrications.