> Assuming my units of measurement 1 Povray unit, how big can I make things > before precision errors become a problem? I.e. what is the "range" of > scales that will still work?
Try a simple 1-line scene like this:
sphere{ <0,0,1> .4 scale X pigment{color rgb 10}}
And increase X until the sphere disappears, on my system X=2e7 doesn't
render.
