I just went back and looked at my photos from the event and compared them to the slides on page 1 of this thread. The southernmost high rise is in PD 331, so it's a no-go.
It also looks like they are siting 4 high rises in subarea C, not 2.
PD 499
https://gisapps.cityofchicago.org/gi..._pds/PD499.pdf
PD 883
https://gisapps.cityofchicago.org/gi..._pds/PD883.pdf
PD 331
https://gisapps.cityofchicago.org/gi..._pds/PD331.pdf