Thank you for your kind words Bryan. I really wanted to illustrate the premise of the infinite Library. Borges's description is loose enough to allow a broad interpretation. However, the very real limitation is that I wasn't able to create a model that could do it (the Library) justice. I'm quite happy with the render that I did complete but the requirement for more and more gallery modules to be in view to give the infinity impression just slowed the model and render process exponentially. This is despite using Chedda's excellent mirror suggestion. What you see in the final render is really the limit of what can be shown in any one view. Anything more always seems to reveal a space at the end of the reflected views that needed another gallery to fill it! And so on....
So, not a dead end but more of a limit reached perhaps. It was a very enjoyable learning experience and not at all wasted. Not sure what I will try next but likely there will always be the false starts and trail of unfinished models!