3d Printing expert need to make an architectural model ready for printing

I would require a person with 3d printing knowledge to help me print the facade system of the model i have done in revit 2109 at the scale of 1:500 its skyscraper which is 311m i need it to be converted to 611 mm print of the facade Someone with experience in both REVIT and 3d printing is required The basic requirements of the project are as follows The fixed price is a bit negotiable 1) scale the building to 1:500 2) provide thickness of at least 2mm so that facade may be printable- 3)There are gaps in the facade that needs to be treated -at this stage a sample print would be taken to make sure the model is as require before moving forward 4) once the sample is as required the entire model is to be converted and made print enabled