Hello, Myself Pragya.
I will take around 18-20 hours for completing the whole project (Including modification of the existing sketchup model, addition of further details in sketchup and rendering the sketchup model to the quality whose samples I will share with you over chat).
I have been working as professional Architect and Interior designer for last 5 years.
I am quite handy with Autocad, 3D modelling software like Sketch up, Revit, Lumion, 3DS Max and Solidworks.
I provide all sorts of architectural services, e.g. 2D CAD plans,accurate 3D model of the interior and exterior of spaces along with realistic rendered views with nice lighting, colors, textures, furniture models etc.
I will provide the source sketchup model in a version that can be opened by you. I understand the level of quality you want, and I am sure you will like my rendering of my previous projects.
Please check my profile to see my work and reviews from awesome clients that I have worked with.
https://www.freelancer.com/u/pragyajprajapati?w=f
Warm Regards