3D reconstruction of historical monuments

I'd like to reconstruct the interior of several French castles and monuments with as much historical accuracy as possible. These reconstructions would then be used in Unity to let visitors explore these monuments as if they had travelled back in time 500 years ago. I'm looking for some extremely talented 3D artists that have a passion for history and would have already access to a database of 3d models for objects, furniture, textures and architectural elements of this time period. Our budget is quite limited so this gig requires some smart use of already created resources that might be available in museums and online digital collections. Please only respond if your demo shows similar work.