looking at the half of the island south of division as the northern end already has Mars Food's worldwide HQ.

i'd also lobby hard for a metra stop at ogden and building a bridge for ogden onto the island for another ingress/egress.

put the dome itself roughly centered at the current streets of hickory and bliss, oriented SE/NW with a glass wall facing the skyline.

build your restaurants, hotels, parking structures, tailgating lawn, and park areas around that.

5 minute walk from metra. 10 minute walk from the blue line at chicago. 15 minute walk from the red.

kennedy access at both north and division would be rough. there's a northbound augusta exit you could modify and add a flyover eastbound on augusta to link up with the proposed ogden bridge extension, possibly.