Sketch Up Design of Office

I'm looking at moving my business to a new premises and as such want to plan the internals / externals design with a 3D sketch up model (based from the architects .dwg

I have the ideas and know how I want the building to look but don't have the expertise to do the sketch up design.

Job:

- Create 3D model of the existing building
- Work with me on designs / colours / furniture layout / changes etc so I can provide my builder / architect with the ideas