Linked files and polycount

Hey everyone

Not sure where to stick this question, hopefully here will do.

I was wondering if anyone knew of an easy way to get the total polygon count for linked files that contain lots of instanced geometry. I have a fairly hefty scene (an old BI one thinking of transferring to cycles) where pretty much everything is linked in. The linked files have instanced geometry in them. I wanted to get an indication of total polycount (for no reason other than curiosity), real and with instances. Does anyone know of a way or do I have to inspect all of the linked files? I’ve had a look around and can’t find anything related to polycount when using linked files.

Thanks in advance