On a slightly different subject, I made a model for this building on the Boston city diagram on SkyscraperPage - feedback is welcome! http://skyscraperpage.com/diagrams/?cityID=145
This is my first time doing models like these, but I might try to add some of the proposed/approved towers to help fill-out the Boston diagram.
It looks pretty solid. One thing worth mentioning is it actually might be drawn too short if the rumor of the extra mechanical height is true. (this being the entire top section I think?) I'd say revisit this once the tower is done and see if it's still to scale.