I had the opportunity to reacreate a knight armor from the Castle of Blois (France).
My coworker, Raphael Marchou (you can check his work here : https://sketchfab.com/raphael) scanned the real model and it was an excellent starting point for scale and shapes ! As we integrate the 3D content on tablet, I tried to make a pretty low mesh, even if our limit by visible object on the screen is 200.000 vertices. The overall model is around 60.000 triangles, so 30.000 vertices.