Love the enthusiasm. I'm not so sure if the fair citizens of Arlington Heights would share it.
Also, the more I think of it, the more I think the location is not ideal.
First of all, any new stadium is going to have far more seating capacity than SF. That's a given. SF has the smallest capacity of any NFL stadium.
Can the Bears fill a 75K- 80K stadium located so far away from the city's rail, rapid transit, bus, and highway transportation hub? Arlington Heights is not Niles or Rosemont or Park Ridge in terms of proximity to the city. Yes, there is a Metra line that runs right through it and decent highways in IL 53 and I-90, but that's it relative to getting there. Forget Pace buses out that way; they're a non-player. In another post, I mentioned that residents out in the far northwest suburbs would find it easy to get to the AH location. But, what would it be like to get there from the southside or from suburbs like Lansing, Hammond, Crete, etc.?
SF beats the proposed location hands down from the standpoints of distance from the far corners of the Chicago market and having a wide variety transportation options to get there. SF has a Metra line and the South Shore Line that have stations within walking distance. It is also within walking distance of the Roosevelt CTA L station serving three rapid transit lines. It also is served by several CTA bus routes, plus it is convenient to the Stevenson and to LSD. It is a short cab/uber ride from three other Metra terminals downtown. The Arlington Heights location being discussed pales in comparison.
Instead of the mixed use developments at Goose Island or that parcel of land on the east side of the river south of Roosevelt, why not build your new arena and entertainment complex there?