Opencart extension for 3D printing and laser cutting service

At the moment we have online a 3D printer service [login to view URL] We'd like to create a new one with a 3D viewer for STL file and GCode file. The system must slice the object and return the prices according to the material chosen, quality, infill, time to print and other parameters. In the backend, we can choose the price for every parameter. The customer can put the item in the cart. Example: [login to view URL] We need also a similar service but for Laser cutting. In this case, the system must show the DXF file and calculate the price according to the material, thickness, laser cut length and time. Also, in this case, all price must be chosen in the backend. The customer can put the item in the cart. Example: [login to view URL] We need all documentation, source code and a working sample on our test site.