My main expertise is Product Visualisation and Animation, which contains a lot of the skills needed for your project. I have completed numerous photo-realistic work with Cinema 4D R19, Octane Renderer and I believe I can help you achieve a professional and expensive look for a good price. I can also take care of post-production, and sound design etc. for £50 more. (£400).
I own 4 material packs, 2 lighting packs and I am very experienced with the node editor in Octane, which is a perfect fit for your project.
I also own a machine with two GTX 1080ti and an i9-9900k, which will be capable of rendering your project quicker than most other freelancers.
Please contact me for more details so we can talk more specific details as I would love to bring your idea to life.