Floor Input plate design and CAD

I am looking to have a floor input plate designed . I will need a all the technical drawing/info to give to a metal fabrication company to make it. The design will be based loosely on : [login to view URL] The unit will need to 'pull out' upto 190mm to allow it to fit several floor boxes. Width will be 74mm. This unti will need to be secured into a floorbox using screws at each end of the unit. Please allow a 'U' shaped cutout centrally at each end Where you see the PC/audio connection will need to be replace to take 2x euromodules such as : [login to view URL] The 2 additional slots shown at the top of the unit need to also take the euromodules and be recessed into the top (not on top as per link). As this is being floormounted please include a metal support behind the euromodules that will stop the modules falling into the plate when pulled a little too hard! Please PM me with any questions.