3D house plans in Sketchup

I am looking for someone to produce a 3D Sketchup model of a 2 stores house (3000sqft) with attached guest house (1000sqft). I only require the shell, windows, inside walls and stairs and roof to be modeled. No details like furniture, floors, paints sanitary etc. needs to be in it. I require the full, unprotected Sketchup file (no screen shots) for my own manipulation afterwards. Each floor level and roof should be grouped separately as a component so I can separate them easily. Please contact me if you require further information. Attached is a drawing of the outside view for reference. I have detailed plans with measurements in in. & ft. And require the model to be scale as much as possible.