Fixing highpoly 3D-scan

Closed - This job posting has been filled and work has been completed.

Job Description

I have a 3D-scan, from a model of a real existing building, which has to be fixed. At the end it must be filled of holes, some detailing and also there is an angle that isn't corret and has to be fixed.
Can also provide some Images of scaned model and of the original building.

Can deliver as: .stl .obj .ply or .wrl
I need fixed file for miling as basrelief on cnc-machine: .obj or .stl would work