I'm tossing around the idea of a focusing screen viewfinder mirror replacement majigger, but even without there's always liveview and focusing by eye in the viewfinder (not terribly accurate, but not terrible either). I only really mind manual for fast-paced things, but that's what the 85 is for.
As far as whether 135 is an appropriate focal length for me, my 85 got quite a bit of use on my 7D (especially when shooting shows from the audience) so that doesn't worry me too much.
I think I have a much better idea of what to expect out of the 135 than I do the TS-E, so I'm going to go ahead and rent the latter for a weekend and see what I think of it. Thank you all for your input and keep it coming if you have anything to add! I'd love to hear it!