I have uploaded some versions a new type of logo you can use. I included some other shades of blue and gray. I eliminated the arch in the logo to avoid similarity like you said in the brief. Should you require some other changes please let me know. I would really like to help you out achieve the logo you need.
I have developed a 3D model for your logo. If you intend to use it in commercials I would be more than happy to provide you with all the necessary files.