Ended up going with about 54% Pils, 34% Dark Munich, 10% Caramunich III, and 2% carafa III.
Just tapped it a couple days ago and its very smooth and malty rich. The color is a little light probably because I didn't add the carafa til the last 10 min of the mash? Its more of a dark reddish brown than the black reddish hue is was going for but I can correct that next time.
Sounds tasty! I'm planning on stopping at Thirsty Monk's to drink his dark larger next week. Something I've been wanting to do for a long time.